All 111 Free Online Tools
Browse 111+ free browser-based developer tools, finance calculators, SEO utilities, and more. Every tool runs entirely in your browser — no signup, no data leaves your device. Built and maintained by the WOWHOW team with 14+ years of hands-on development experience.
Finance & Business (58 tools)
- GST Invoice Generator — GST-compliant PDF invoice in 60 seconds — no signup Create GST-compliant invoices with auto HSN lookup, CGST/SGST/IGST calculation, and instant PDF export. Free, no signup, data stays in browser.
- CTC to In-Hand Salary Calculator — Find exact take-home from CTC — FY 2026-27, no signup Find your exact monthly take-home from CTC in seconds. Old vs New regime side by side, HRA, 80C, PF included. Free for FY 2026-27, no signup.
- Old vs New Tax Regime Optimizer — Enter deductions — instantly see which regime saves more Enter your income + deductions and instantly see which tax regime pays less for FY 2026-27. 80C, HRA, NPS modelled. Free, no signup required.
- ITR Document Checklist Generator — Get an ITR-ready checklist by taxpayer type and form Generate a practical ITR document checklist for AY 2026-27 based on taxpayer type, return form, capital gains, house property, GST registration, and presumptive taxation.
- GST Late Fee & Interest Calculator — Estimate filing delay cost for normal and nil returns Calculate GST late fee and interest for delayed filing based on days late, tax liability, and return type. Useful for freelancers, agencies, and small businesses in India.
- SIP & EMI Calculator — SIP corpus + EMI schedule — visual charts, free, instant Calculate SIP corpus with year-wise growth chart or EMI with full amortization schedule. Indian number format, instant results. Free, no signup.
- QR Code Generator — URL, WiFi, UPI & vCard QR codes — PNG/SVG, bulk CSV Generate QR codes for URLs, WiFi passwords, UPI payments, and vCards in seconds. Custom colors, PNG/SVG export, bulk from CSV. Free, no signup.
- Live Currency Converter — Compare 150+ currencies with live rates Convert any amount across 150+ world currencies with daily-updated exchange rates. See all countries at a glance with flags and instant calculation.
- Privacy Policy Generator (India DPDP) — Generate DPDP-compliant privacy policies for Indian businesses Step-by-step wizard to generate a privacy policy compliant with India's DPDP Act 2023, IT Act 2000, and optionally GDPR. Includes Terms of Service. Export as Markdown, HTML, or plain text.
- Loan Comparison Calculator — Compare up to 4 loan offers side by side Compare bank loan offers with EMI calculation, total cost breakdown, processing fees, and prepayment analysis. Indian number formatting. Find the best value offer instantly.
- Gratuity + PF + Leave Calculator — Full F&F settlement — gratuity, PF & leave with tax breakdown Calculate your full F&F settlement — gratuity, EPF corpus, and leave encashment with tax breakdown. Rs 25L exemption. Free, no signup, India.
- Rent Receipt Generator — Generate rent receipts for HRA tax exemption Generate monthly rent receipts for HRA exemption with tenant/landlord details, amount in words, and PDF download. Includes PAN requirement check and revenue stamp note.
- Stamp Duty Calculator — Calculate stamp duty and registration charges by state Calculate stamp duty, registration charges, and total government fees for property purchase across all Indian states. Includes women buyer concessions and city-wise rates.
- HRA Exemption Calculator — Exact HRA tax exemption — all 3 formula parts shown Calculate exact HRA tax exemption under Section 10(13A). Updated metro city list 2026 — Bengaluru, Pune, Hyderabad included. Free, no signup.
- TDS Calculator India — TDS for salary, rent, fees, FD — PAN vs no-PAN rates Calculate TDS on salary, rent, professional fees, FD interest, and contractors. PAN vs no-PAN rates under Section 206AA. Free, no signup.
- GST Calculator — Add or remove GST for all 5 slabs — reverse GST too Calculate GST for all 5 slabs at once. Toggle add/remove, switch CGST+SGST vs IGST, get reverse GST instantly. Free, no signup, browser-based.
- Income Tax Calculator FY 2026-27 — See your exact tax in 30 seconds — Old vs New regime See your exact income tax in 30 seconds. Compare Old vs New regime with slab-wise breakdown, 87A rebate, surcharge & cess. Free, no signup.
- GSTIN Validator — Validate and decode GSTIN with state and entity details Validate GSTIN structure and check digit, decode state code, PAN, and entity type. Bulk validation mode. All 37 state codes supported. No external API calls.
- ITR Form Selector — Which ITR form should you file? — Step-by-step wizard Answer 5 simple questions and get the right ITR form recommendation — ITR-1, 2, 3, or 4. Includes due date, document checklist, and applicable sections.
- Section 80C Tax Planner — Max Rs 1.5L 80C deduction — ELSS, PPF, LIC, NPS planned Map your 80C investments across ELSS, PPF, LIC, NSC. See tax savings at your slab, NPS 80CCD(1B) extra Rs 50k. Free, no signup, Old Regime only.
- HSN & SAC Code Finder — Search HSN codes for goods and SAC codes for services Search HSN codes for goods and SAC codes for services with fuzzy matching. See GST rate, chapter description, and code hierarchy. Free companion for GST invoicing.
- IFSC Code Finder — Search bank branch IFSC, MICR codes and address Find IFSC codes for any Indian bank branch. Search by bank and city or enter IFSC directly. View MICR code, address, and NEFT/RTGS/IMPS support status.
- PPF, NPS & FD Calculator — Government savings scheme calculator with maturity tables Calculate returns for PPF (7.1%), NPS, Fixed Deposits, and Recurring Deposits. Year-wise growth tables, tax deduction under 80C/80CCD, and Indian number formatting.
- Salary Slip Generator — Generate payslips with Indian statutory deductions Create professional salary slips with Basic, HRA, DA, PF (12%), ESI, professional tax, TDS, and other allowances. Auto-calculates statutory deductions. PDF download.
- 8th Pay Commission Calculator — Calculate revised salary under 8th CPC fitment scenarios Estimate your revised basic pay, HRA, and gross salary under the 8th Pay Commission with three fitment factor scenarios (1.83x, 2.28x, 2.86x). Calculate arrears instantly.
- Advance Tax Calculator — Plan quarterly advance tax with 44ADA support Calculate advance tax installments for FY 2025-26 with Section 44ADA presumptive scheme support. Old vs New regime comparison, quarterly schedule, and penalty calculator.
- Section 44ADA Tax Calculator — Presumptive tax for professionals — compare 44ADA vs regular Calculate income tax under Section 44ADA presumptive taxation scheme for FY 2025-26. Designed for doctors, lawyers, CAs, architects, and engineers. Compare 44ADA vs regular taxation, Old vs New regime, and get your advance tax schedule.
- Full & Final Settlement Calculator — Calculate complete F&F settlement in one place Calculate your full and final settlement — unpaid salary, leave encashment, gratuity, bonus minus notice recovery and deductions. Updated for 2025 Labour Code.
- Capital Gains Tax Calculator — LTCG & STCG — Budget 2024 rates, indexed vs flat for property Calculate LTCG and STCG on equity, mutual funds, property, and gold. 12.5% vs indexed comparison for property. Free, no signup, browser-based.
- PPF Calculator — 15-year PPF maturity at 7.1% — year-wise table, free See exact PPF maturity at 7.1% p.a. with year-wise interest table. FY 2026-27 rates, 80C deduction shown. Free, no signup, results in seconds.
- Gratuity Calculator — Gratuity for Govt & private sector — correct formula, instant Calculate gratuity under the Payment of Gratuity Act 1972. Private (26-day) vs Govt (30-day) formula. 5+ years service. Free, no signup, instant.
- FD Calculator — Calculate fixed deposit maturity value with TDS Free fixed deposit calculator for Indian banks. Calculate FD maturity with quarterly/monthly compounding, senior citizen rates, and TDS deduction.
- Lumpsum Calculator — Calculate lumpsum investment returns with growth table Free lumpsum investment calculator with year-wise growth breakdown. Compare lumpsum vs SIP side-by-side. Indian number formatting, no signup.
- Compound Interest Calculator — Calculate compound interest with growth chart and contributions Free compound interest calculator with daily, monthly, quarterly, and annual compounding. Add monthly contributions, compare CI vs simple interest, and view year-by-year growth charts.
- NPS Calculator — Estimate NPS retirement corpus and monthly pension Free NPS calculator for FY 2026-27. Estimate retirement corpus, lump sum, and monthly pension from National Pension System. Includes Section 80CCD(1B) tax benefit calculation.
- Retirement Calculator — Plan your retirement with inflation-adjusted corpus and pension estimates Free retirement calculator for India. Calculate inflation-adjusted corpus needed, monthly pension, gap analysis, and year-by-year projection. Includes EPF, NPS, PPF tips and 3.5% safe withdrawal rule.
- Home Loan EMI Calculator — Exact EMI + total interest + amortization — any Indian bank Calculate exact EMI, total interest, and year-wise amortization for any Indian bank loan. Compare offers side by side. Free, no signup required.
- SWP Calculator — Plan systematic withdrawals from mutual fund investments Free SWP calculator for 2026. Estimate monthly withdrawals, remaining corpus, and total income from Systematic Withdrawal Plans. Year-wise breakdown with tax implications.
- CAGR Calculator — Calculate compound annual growth rate of any investment Free CAGR calculator to find compound annual growth rate, absolute returns, and growth multiple. Includes reverse CAGR mode to find required final value. No signup required.
- Mortgage Calculator — Monthly payment with PMI, amortization & total cost Calculate your monthly mortgage payment including principal, interest, property tax, insurance, and PMI. See full amortization schedule, payment breakdown, and total cost over the life of the loan.
- Investment Returns Calculator — Calculate investment growth with inflation adjustment Free investment returns calculator with monthly contributions and inflation adjustment. Compare nominal vs real returns and see year-by-year growth projections.
- Paycheck Calculator — Estimate your take-home pay after federal and state taxes Free US paycheck calculator with 2026 federal and state tax brackets. Estimate take-home pay after federal tax, state tax, Social Security, and Medicare deductions.
- Debt Payoff Calculator — Plan your debt-free journey with snowball or avalanche strategies Free debt payoff calculator with snowball and avalanche strategies. Compare payoff timelines, total interest paid, and see a month-by-month schedule — no signup required.
- 401k Calculator — Estimate your retirement savings with employer match and compound growth Free 401k calculator with 2026 IRS contribution limits, employer match modeling, and compound growth projection. Estimate your retirement savings with year-by-year breakdown — no signup required.
- Net Worth Calculator — Calculate your total net worth and compare to US averages by age Free net worth calculator to track assets and liabilities. Add line items across categories like cash, investments, retirement, real estate, and debts. Compare your net worth to US median by age bracket using Federal Reserve SCF data.
- Auto Loan Calculator — Calculate your monthly car payment instantly Calculate your monthly auto loan payment with down payment, trade-in value, sales tax, and interest rate. See full amortization schedule and total cost breakdown — free, no signup.
- Tax Bracket Calculator — See exactly how your income is taxed by bracket Calculate your 2026 federal income tax with a visual bracket breakdown. See effective vs marginal tax rate, tax owed per bracket, and after-tax income — free, no signup.
- US Capital Gains Tax Calculator — Federal capital gains tax — long-term 0%/15%/20% and short-term rates Calculate 2026 federal capital gains tax on stocks, crypto, and real estate. See long-term 0%/15%/20% rates by income bracket, short-term ordinary income rates, and NIIT. Free, no signup.
- US Auto Loan Calculator — Monthly payment, true cost & amortization for US auto loans Calculate your US auto loan monthly payment with vehicle price, down payment, trade-in, sales tax, APR, and term. See true cost of car and full amortization table — free, no signup.
- US Tax Bracket Calculator 2026 — 2026 IRS federal tax brackets — effective rate, marginal rate, take-home Calculate your 2026 US federal income tax with a visual bracket breakdown. See effective vs marginal tax rate, tax owed per bracket, and after-tax income — free, no signup.
- CPF Calculator — Singapore — Calculate CPF contributions with OA/SA/MA breakdown by age Free Singapore CPF contribution calculator with 2026 wage ceilings. See employee and employer CPF, Ordinary/Special/MediShield account allocation, and take-home pay by age bracket — no signup required.
- DPDPA Compliance Checklist Generator — Get audit-ready for India's data protection law before May 2027 Generate a customized DPDPA compliance checklist for your Indian business. Covers consent, data rights, security, and penalties up to ₹250 crore.
- India Capital Gains Tax Calculator — LTCG & STCG tax on equity, property, gold, and mutual funds — Budget 2024 rates Calculate LTCG and STCG tax on equity, property, gold, and mutual funds for FY 2026-27. Budget 2024 rates: 12.5% LTCG equity, indexation toggle for property, surcharge, and 4% cess included. Free, no signup.
- Roth IRA Contribution & Growth Calculator — Project tax-free retirement wealth with 2026 IRS limits Calculate Roth IRA growth with 2026 contribution limits ($7,000/$8,000). Check MAGI income eligibility, project tax-free retirement balance, and compare against Traditional IRA after-tax value.
- HELOC Calculator — Home equity line of credit limit, draw & repayment payments Calculate your HELOC credit limit, interest-only draw period payments, and repayment phase P&I. Compare HELOC vs Home Equity Loan side by side — free, no signup required.
- US Student Loan Repayment Calculator — Compare all federal repayment plans — Standard, IBR, PAYE, SAVE Calculate monthly payments for all federal student loan repayment plans. Standard, Graduated, Extended, IBR, PAYE, SAVE/REPAYE — with amortization table, total interest, and payoff date.
- Mortgage Refinance Break-Even Calculator — See exactly when refinancing pays off Calculate your mortgage refinance break-even point, monthly savings, and total interest saved. Compare your current loan vs. a new loan side-by-side and get a plain-English recommendation on whether refinancing makes sense for your situation.
- Rent vs Buy Calculator 2026 — Find your break-even year — true cost of renting vs buying over 5–30 years Compare the true cost of renting vs buying a home over any horizon. Includes mortgage P&I, property tax, insurance, HOA, maintenance, opportunity cost of down payment, and home appreciation. Break-even year shown.
Developer (28 tools)
- JSON Formatter & Validator — Format, validate & diff JSON — runs entirely in browser Paste messy JSON and get clean formatted output instantly. Validate with exact error lines, diff two JSONs, convert to CSV or YAML. No signup.
- Regex Playground — Test regex live — railroad diagrams + plain English explained Test regex patterns with live match highlighting, railroad diagrams, and plain English explanations. Client-side, no signup, zero data sent.
- Color System Generator — One color in, full design system out Enter one brand color and get a complete 10-shade palette, semantic colors, WCAG accessibility scores, and export as Tailwind config or CSS variables.
- Cron Expression Builder — Build cron jobs visually — no syntax to memorize Visual cron expression builder with natural language output, next 10 execution times, and reverse explainer. Paste any cron string to decode it.
- .env File Validator & Converter — Validate, compare, and convert .env files Paste .env content to validate for errors, compare with .env.example, convert between .env/JSON/YAML/Docker/Kubernetes formats, and detect secrets. Runs in your browser.
- Diff Checker — Compare two texts and spot every difference instantly Side-by-side text comparison with unified, inline, and split diff views. Color-coded additions and removals, ignore whitespace/case options, and .diff file export.
- SQL Formatter — Beautify and format SQL queries instantly Format messy SQL into clean, readable queries. Syntax highlighting, keyword casing options, adjustable indentation. Supports SELECT, INSERT, UPDATE, DELETE, JOINs, CTEs, and subqueries.
- CSS Gradient Generator — Create beautiful gradients with a visual editor Build CSS gradients visually with live preview. Linear, radial, and conic types. Add/remove color stops, adjust angles, choose from 10 presets, generate random gradients. Copy CSS or Tailwind code.
- CSS Box Shadow Generator — Design beautiful CSS shadows with a visual editor Generate CSS box shadows with a visual editor. Multiple layers, 8 presets, live preview on white/gray/dark backgrounds, and one-click copy for CSS and Tailwind.
- Text Case Converter — Convert text between 12 case formats instantly Convert text between 12 cases instantly: camelCase, PascalCase, snake_case, kebab-case, UPPER, lower, Title, CONSTANT_CASE, dot.case, and more. One-click copy for each format.
- Color Contrast Checker — WCAG AA/AAA accessibility compliance in real time Check color contrast ratios for WCAG AA and AAA accessibility compliance. Live text preview, relative luminance calculation, and suggestions to fix failing contrast.
- CSS Layout Generator — Build Flexbox & Grid layouts visually with Tailwind export Build CSS Grid and Flexbox layouts visually. Set columns, rows, gaps and alignment. Preview live. Export standard CSS and Tailwind utility classes instantly.
- Favicon Generator — Create favicons from text, emoji or image — all sizes Generate favicons from text, emoji, or uploaded images. Creates all sizes (16x16 to 512x512), Apple Touch icon, and HTML link tags. 100% browser-based.
- Hash Generator — MD5, SHA-1, SHA-256, SHA-512 hashes in your browser Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files instantly in your browser. 100% private — data never leaves your device.
- JWT Decoder — Decode JWT header, payload & expiry — tokens stay private Decode JWT header, payload, and expiry in one click. Verify HMAC signatures client-side. Your tokens never leave the browser. Free, no signup.
- XML Formatter & Validator — Format, validate and minify XML with syntax highlighting Format, validate, minify and beautify XML instantly with syntax highlighting and line numbers. Supports custom indentation. 100% browser-based.
- CSS Clip-Path Generator — Create complex clip-path shapes with visual drag handles Build CSS clip-path polygons, circles, and ellipses with a visual editor. Drag points, pick presets, copy the CSS. Supports -webkit- prefix.
- Glassmorphism Generator — Generate frosted glass CSS effects with live preview Create beautiful glassmorphism effects with adjustable blur, opacity, background color, and border. Live preview with gradient backgrounds. Copy clean CSS.
- CSS Animation Generator — Build custom keyframe animations with visual easing editor Create CSS keyframe animations with 13 presets, custom cubic-bezier easing, live preview, and one-click code copy. No dependencies required.
- CSS Unit Converter — Convert px, rem, em, vh, vw with Tailwind equivalents Convert between CSS units — px, rem, em, pt, vw, vh — with configurable base font size and viewport. Shows nearest Tailwind CSS classes and a bulk reference table.
- Markdown Editor — Write Markdown with instant live preview and HTML export Split-pane Markdown editor with live preview, GFM support (tables, task lists, code blocks), toolbar, and one-click export to HTML or .md file.
- cURL to Code Converter — Convert cURL commands to Python, JavaScript, Go, and PHP Paste a cURL command and get equivalent code in JavaScript (fetch/axios), Python requests, PHP, Go, and Node.js. Handles headers, JSON body, auth, and SSL flags.
- Coding Assistant ROI Calculator — Estimate payback for Claude Code, Cursor, and Copilot seats Free coding assistant ROI calculator. Estimate monthly team cost, hours saved, value created, and break-even time for Claude Code, Cursor, and GitHub Copilot. No signup required.
- AI Prompt Cost Calculator — Compare AI API costs across every major LLM Free AI prompt cost calculator. Estimate token count from your prompt text and compare costs across Claude, GPT-5, GPT-4o, Gemini 3.1 models. Project monthly API spend instantly. No signup required.
- Payment Gateway Fee Calculator — Compare real costs of Stripe, Dodo, Paddle & LemonSqueezy Calculate and compare true payment processing costs including hidden fees, tax compliance costs, and refund/dispute charges. See exactly how much Stripe, Dodo Payments, Paddle, and LemonSqueezy will cost your business annually.
- Base64 Encoder / Decoder — Encode/decode text & files — URL-safe, MIME, data URLs Encode or decode Base64 text and files instantly. URL-safe mode, MIME wrapping, data URL output. Runs entirely in browser — no signup, no upload.
- AI Token Counter — Count tokens & estimate costs for GPT-5.4, Claude 4.6 & Gemini 3.1 Pro Paste any text to count tokens and see real-time API cost estimates across 8 AI models. Compare GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro and more. Toggle between USD and INR. Free, no signup, runs entirely in your browser.
- Codebase Dependency Visualizer — Visualize project dependencies as an interactive graph Paste a package.json, requirements.txt, go.mod, or Cargo.toml and see your dependencies as an interactive force-directed graph. Color-coded by dependency type with click-to-inspect nodes and SVG export.
SEO & Content (7 tools)
- Meta Tags & OG Preview — Preview how your site looks on Google, Twitter & more Generate and preview meta tags across 6 platforms — Google, Twitter, Facebook, LinkedIn, Discord, WhatsApp. Get the HTML code with one click.
- Image Compressor — Compress, resize, watermark & convert images in bulk All-in-one image toolkit: batch compress up to 100 images, convert formats (PNG/JPG/WebP), resize with social media presets, add watermarks, view & strip EXIF data, bulk rename, and download as ZIP. 100% browser-based, zero uploads.
- Word & Character Counter — Count words, characters, and reading time Paste any text and get instant word count, character count, sentence count, paragraph count, and estimated reading and speaking time.
- Schema Markup Generator — Generate JSON-LD structured data for Google rich results Create Schema.org JSON-LD markup for Articles, Products, Local Businesses, FAQs, HowTo, Recipes, Events, and more. Live preview, validation, and Google Rich Results test link.
- YouTube Earnings Calculator — Estimate your YouTube revenue by views and niche Estimate daily, monthly, and yearly YouTube earnings based on views, content niche, and audience region. Includes CPM ranges for India, US, and global audiences.
- Instagram Engagement Rate Calculator — Check your engagement rate with industry benchmarks Calculate your Instagram engagement rate from likes, comments, shares, and saves. Get a rating badge, industry benchmarks comparison, reach estimate, and brand deal pricing.
- Medium Formatter — Convert Markdown to Medium-ready HTML with live preview Professional Markdown-to-Medium editor with split-pane live preview, sync scroll, GitHub Gist table embeds, dark mode, find & replace, and one-click copy.
Utilities (18 tools)
- Base64 Encoder / Decoder — Encode and decode Base64 instantly Convert text to Base64 and back. Also supports file-to-Base64 encoding for images and documents. Fast, private, runs in your browser.
- UUID Generator — Generate unique IDs with one click Generate UUID v4 (random) identifiers instantly. Bulk generate up to 100 UUIDs at once. Copy individual or all with one click.
- Unix Timestamp Converter — Convert timestamps to human dates and back Convert Unix timestamps to human-readable dates and vice versa. Live clock, relative time display, and multiple date format options.
- Password Generator — Crypto-strong passwords — entropy shown, never stored Generate cryptographically secure passwords with custom length, character rules, and entropy display. Runs client-side, never stored. No signup.
- Age Calculator — Calculate exact age with government exam eligibility Calculate your exact age in years, months, days, hours. Check eligibility for UPSC, SSC, Bank PO, NEET, JEE, and Agniveer with age limit verification.
- CGPA to Percentage Converter — Convert CGPA to percentage for any Indian university Convert CGPA to percentage using official formulas for Mumbai University, Anna University, VTU, CBSE, Delhi University and 10+ more. Reverse conversion included.
- WhatsApp Link Generator — Create click-to-chat links with QR codes Generate WhatsApp wa.me links with pre-filled messages, auto QR codes, HTML chat button code, floating widget snippets, and bulk link generation. Perfect for businesses.
- Percentage Calculator — Four percentage modes in one compact view Calculate "what is X% of Y", "X is what % of Y", percentage change, and add/subtract percentages — all at once. Quick buttons for GST, tips, and discounts.
- Typing Speed Test — Test WPM, accuracy and exam eligibility in 1 minute Test your typing speed in WPM with real-time feedback. Colored character tracking, accuracy and KDPH metrics, SSC CHSL, Railway NTPC and Bank PO eligibility check.
- Number to Words Converter — Convert numbers to words in Indian format (lakhs/crores) Convert any number to words in Indian numbering system (lakhs, crores) with Rupees currency mode. Perfect for cheques, invoices, and legal documents.
- PAN Card Validator — Validate PAN format and decode all 10 characters Validate Indian PAN card format, decode entity type, extract embedded information, and understand what each character means. Supports bulk validation.
- Tip Calculator — Calculate tip, total, and split the bill Calculate tip amount, total bill cost, and per-person split instantly. Choose preset tip percentages or enter a custom amount. Perfect for restaurants, delivery, and any service.
- BMI Calculator — Body Mass Index and healthy weight range Calculate your BMI using the standard WHO formula. See your weight category, healthy weight range for your height, and what your BMI score means.
- TDEE & Calorie Calculator — Find your daily calorie needs for any goal Calculate your Total Daily Energy Expenditure (TDEE) and BMR using the accurate Mifflin-St Jeor formula. Get personalized calorie targets and macro breakdown for weight loss, maintenance, or muscle gain.
- Time Zone Converter — Convert time across 500+ world time zones instantly Free time zone converter supporting all IANA time zones. Convert meeting times, schedule across countries, see working hours overlap. No signup required.
- Random Number Generator — Generate truly random numbers, picks, and shuffles Free random number generator using cryptographic randomness. Generate single numbers, lists, or pick random items from custom sets. No signup required.
- Password Strength Checker — Test password strength and get instant security feedback Free password strength checker that calculates entropy, estimates crack time, and checks for common patterns. Generate strong passwords instantly. No signup, nothing stored.
- Unit Converter — Convert length, weight, temperature, and 5 more unit types Free unit converter covering length, weight, temperature, area, volume, speed, data, and time. Instant bidirectional conversion with full unit tables. No signup required.