Free Online Tools
Calculators, converters, generators, and checkers that run instantly in your browser. No uploads to servers, no signup required.
Resume Builder
Build ATS-friendly resumes with live preview. Export to PDF and Word. Single-column templates, no signup, no watermarks.
PDF + Word • ATS-safe • Live preview • No upload
Cover Letter Builder
Write professional cover letters with live preview. Export to PDF and Word. Salutation and closing options. No signup.
PDF + Word • Templates • Tailored • No upload
Job Keyword Matcher
Compare any job description against your resume to find missing keywords. Improve your ATS match score instantly. No uploads.
Client-side • Match score • PDF report • Free
Word Counter
Count words, characters, sentences, paragraphs, reading time, and speaking time. Paste from any editor. No signup.
Real-time • Reading time • Speaking time • Free
Case Converter
Convert text between uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case, and kebab-case. No signup.
8 formats • Instant • Copy with one click • Free
Reading Time Calculator
Estimate reading time and speaking time for any text. Word count, page count, and 4 reading speeds. No signup.
4 speeds • Speaking time • Page count • Free
Diff Checker
Compare two texts side by side with line-level and word-level diff. Spot additions, deletions, and changes instantly. No uploads.
Client-side • Split + Unified • Copy result
Cron Expression Generator
Build cron schedules visually with plain-English explainer and next 10 execution previews. Standard, 6-field, and Quartz support.
Client-side • Standard • Quartz • Next-run preview
CSS Generators
Design box shadows, gradients, flexbox layouts, and CSS grids visually. Live preview with instant CSS and Tailwind output.
Client-side • Shadow • Gradient • Flexbox • Grid • Tailwind
Data Converter
Convert between CSV, JSON, XML, and YAML in any direction. Auto-detect input format. No uploads to servers.
Client-side • CSV • JSON • XML • YAML • Auto-detect
SQL Formatter & Validator
Beautify, minify, and validate SQL for PostgreSQL, MySQL, SQLite, and SQL Server. Syntax highlighting. No uploads.
Client-side • PostgreSQL • MySQL • SQLite • T-SQL • Validate
Network Tools
DNS lookup via DNS-over-HTTPS, site reachability check, and RDAP WHOIS lookup. Your queries stay client-side.
DNS • Site Check • WHOIS • DoH • RDAP
Markdown Editor
Write Markdown with live GitHub-flavored preview, syntax highlighting, and HTML export. Auto-saves locally. No uploads.
GFM • Live preview • HTML export • Offline
QR Code Generator
Create scannable QR codes for URLs, text, phone, email, SMS, and Wi-Fi. Customize colors, size, and error correction.
Client-side • No watermarks • PNG download
Password Generator
4 password types: Random, Memorable Passphrase, Enterprise-Grade, and Pronounceable. Copy with one click. No data sent to servers.
4 modes • Copy button • Entropy display
Favicon Generator
Create multi-resolution favicons from images, text, or emoji. Download .ico, PNG pack, or modern SVG. Preview in light and dark tabs.
ICO • PNG • SVG • Text • Emoji • No upload
Invoice Generator
Create professional PDF invoices with logo, line items, tax, and discounts. Auto-calculated totals. No signup.
Logo upload • 8 currencies • PDF export
Color Palette Generator
Generate accessible color palettes from one seed color. Preview on real UI components in light and dark mode. Export to CSS, Tailwind, or hex.
WCAG checked • Light + dark • Token export
Hash Generator
Generate cryptographic hashes using SHA-1, SHA-256, SHA-384, and SHA-512. Paste any text and get instant hex digests. No data leaves your browser.
SHA-1 • SHA-256 • SHA-384 • SHA-512 • Client-side
Image Compressor
Shrink JPEG, PNG and WebP images by 50–80% without visible quality loss. No uploads to servers.
Client-side • Instant • WebP / JPEG / PNG
PDF to Word & Word to PDF Converter
Convert PDF files to editable Word documents and DOCX back to PDF. All processing happens in your browser.
Client-side • Bidirectional • No watermarks
Base64 Encoder / Decoder
Encode and decode Base64 with full Unicode and emoji support. Uses modern TextEncoder API for perfect fidelity. No uploads.
Unicode • Emoji • Client-side • Encode + Decode
URL Encoder / Decoder
Encode and decode URLs and URL components. Handles special characters, spaces, and Unicode for safe web transmission.
Component • Full URL • Unicode • Client-side
Website Speed Test
Measure load time, TTFB, compression, caching, and SSL for any website. Get a grade and actionable fixes.
Grade A-F • 6 metrics • CORS-aware
SEO Score Checker
Audit title tags, meta descriptions, headings, images, links, schema, and semantic HTML. Get a grade and fix list.
25+ factors • 4 categories • CORS-aware
Broken Link Checker
Scan any webpage for broken internal and external links. See 404s, redirects, and server errors. Fix list included.
Internal + external • Image check • CORS-aware
IP Address Checker
Find your public IPv4 and IPv6 address, ISP, location, timezone, and check for proxy or VPN detection. No data stored.
IPv4 + IPv6 • ISP lookup • Privacy check
Meta Tag Generator
Generate SEO meta tags, Open Graph markup, and Twitter Cards. Preview Google SERP, Facebook, and Twitter cards live. Copy-ready HTML + JSON-LD.
Live preview • HTML + JSON-LD • No signup
Screenshot Beautifier
Turn screenshots into professional device mockups. Desktop, laptop, tablet, and phone frames. High-res PNG export. No watermarks.
Canvas API • 4 devices • PNG export • No upload
PDF Compressor
Shrink PDF file size by re-encoding images and stripping metadata. Smart mode preserves text selection; Max mode rasterizes for smallest size.
Client-side • Smart + Max • Exact targeting
PDF Merger
Combine multiple PDFs into one document. Drag and drop to reorder files before merging. No file size limits, no watermarks.
Client-side • Drag & drop • Reorder
PDF Splitter
Extract specific page ranges or split every page into individual PDFs. Perfect for separating chapters, invoices, or sections.
Client-side • Page ranges • ZIP export
PDF Rotator
Rotate all pages or specific pages by 90°, 180°, or 270°. Fix upside-down scans and sideways photos in seconds.
Client-side • 90° / 180° / 270° • All or select
Images to PDF
Convert JPG, PNG, and WebP images to a single PDF. Control page size, orientation, margins, and image fit.
Client-side • JPG • PNG • WebP • Reorder
PDF to Images
Render every PDF page as a high-resolution PNG or JPEG. Choose DPI, quality, and export as individual files or ZIP.
Client-side • PNG • JPEG • DPI control • ZIP
JSON Formatter
Format, minify, and validate JSON with syntax highlighting and tree view. Fix malformed JSON with helpful error messages. No uploads.
Format • Minify • Validate • Syntax highlight
JWT Decoder
Decode JSON Web Tokens to inspect headers, payloads, and expiration claims. Verify signatures and troubleshoot auth issues. No data sent to servers.
Decode • Header • Payload • Expiry • Client-side
Regex Tester
Test regular expressions in real time with match highlighting, replace preview, and explanation. Supports JavaScript, PCRE, and Python flavors.
Real-time • Replace preview • Explanation • ReDoS safe
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports ISO, UTC, local time, and relative formats. No uploads.
Unix • ISO • UTC • Local • Relative
AI Cost Calculator
Estimate your monthly AI stack spend across ChatGPT, Claude, Cursor, Copilot, OpenAI, DeepSeek, Kimi and more.
11 tools • 20+ models • USD/EUR/GBP
Compound Interest Calculator
Project savings and investment growth with monthly, quarterly, or annual compounding. Visual growth chart and scenario comparison included.
Monthly • Quarterly • Annual • Growth chart • PDF export
Mortgage Calculator
Calculate true monthly payments with PITI, PMI, and HOA. Full amortization schedule, extra payment savings, and 15 vs 30 year comparison.
PITI • PMI • HOA • Amortization • PDF export
Salary Converter
Convert hourly, yearly, monthly, and weekly pay instantly. Blend overtime, adjust working weeks, and compare W-2 versus 1099 contractor earnings.
Overtime • W-2 vs 1099 • True hourly • PDF export
ROI Calculator
Measure return on investment with hidden costs, break-even timeline, and annualized ROI. Side-by-side investment comparison with PDF export.
Hidden costs • Break-even • Annualized • Comparison • PDF
Tax Calculator
Estimate income tax with US Federal 2026 brackets, custom rate mode, self-employment tax, and QBI deduction. Refund vs owed dual output.
2026 Brackets • Self-employment • QBI • PDF export
Cloud Cost Calculator
Compare hosting and backend pricing across Vercel, Netlify, Cloudflare, AWS Amplify, Supabase, Firebase, Render, and Railway. Auto-estimates from user count.
8 providers • Free tiers • Auto-estimate • PDF export
Unit & Currency Converter
Convert length, weight, temperature, volume, speed, area, and currency. US/UK/Metric toggle, combined formats, formula transparency, and offline-first.
7 categories • US/UK/Metric • Offline • PDF export
Cooking Converter
Ingredient-aware density conversions for 26 ingredients, recipe scaler with kitchen fractions, and US vs UK measurement tools.
26 ingredients • Fractions • US vs UK • PDF export
Data Storage Converter
Convert bytes to terabytes with binary vs decimal clarity. IEC labels, data rate converter, and download time estimates. PDF export.
Binary • Decimal • Mbps to MB/s • Download time • PDF
Social Media Engagement Calculator
Calculate engagement rates for Instagram, TikTok, YouTube, and LinkedIn. Benchmark against industry averages.
IG • TikTok • YouTube • LinkedIn • Benchmarks
No tools match your search. Try .