All Tools
Free & Online

Format, validate, and beautify JSON data with syntax highlighting, error detection, and comparison features.

Calculate time differences, days between dates, business days, age calculator, and countdown timers. Perfect for project planning.

Calculate prices per unit, convert measurements, compare costs across currencies. Perfect for shopping, cooking, and business.

Calculate monthly loan and mortgage payments (EMI), total interest, and total cost. Works for home, car, student, and personal loans — instantly in your browser.

Find a percent of a number, work out what percent one value is of another, and calculate percentage increase or decrease — instantly as you type.

Find your exact age in years, months, and days from your date of birth, with total weeks/days/hours and a countdown to your next birthday.

Calculate the tip and split a bill any number of ways. Quick presets, per-person totals, and instant results for any restaurant or service.

Calculate your weighted GPA on the 4.0 scale from your course grades and credit hours. Add unlimited courses and see total credits instantly.

A full scientific calculator with trigonometry, logarithms, powers, roots, and constants — with a safe expression evaluator and DEG/RAD modes.

Test and debug regular expressions live with flag toggles, match highlighting, capture-group inspection, and a replacement preview.

Compare two blocks of text or code and see a clear line-by-line diff with added and removed lines highlighted. Runs entirely in your browser.

Write Markdown with a live HTML preview, a formatting toolbar, and one-click copy or download. Perfect for READMEs and documentation.

Build and decode cron schedules with presets and a plain-English explanation of exactly when each expression runs.

Convert data freely between JSON, CSV, and YAML in your browser. Nothing is uploaded — all conversion happens locally on your device.

Create custom QR codes for links, Wi-Fi, text, email, phone, and SMS. Adjust size and colors, then download a high-resolution PNG — all in your browser.

Convert iPhone HEIC/HEIF photos to JPG or PNG, in batches, with adjustable quality. Runs entirely in your browser — nothing is uploaded.

Extract editable text from screenshots, photos, scans, and documents with in-browser OCR in multiple languages. Your images never leave your device.

Erase the background from any image with an in-browser AI model and get a transparent PNG. No watermark, no sign-up, and your photo is never uploaded.

Convert each page of a PDF into a JPG or PNG image with adjustable resolution and quality. Rendered locally in your browser — nothing uploaded.

Generate UUIDs, cryptographic hashes, random strings, passwords, API keys, JWT tokens, and encode/decode data formats.

Monitor website availability, check response times, and track uptime statistics with real-time status monitoring.

Comprehensive file analysis tool that extracts metadata, technical details, security information, and complete file properties.

Professional data visualization tool for CSV and Excel files. Upload, parse, preview, filter, and analyze spreadsheet data with advanced features.

Minify HTML, CSS, and JavaScript code for production. Remove whitespace, comments, and optimize code size for faster loading.

All-in-one text toolkit with case converter, live word/character/sentence counter, specific term counter, cleanup tools, find/replace, and file upload support.

Create ZIP from uploaded files, add optional password protection, upload ZIP files to inspect content, and unlock password-protected archives.

Validate JSON, XML, YAML, TOML, INI, JavaScript, TypeScript, Python, HTML, SQL, and regex with detailed diagnostics.

Encrypt and decrypt text or files using repeating-key byte transformation with custom keys, random 512-bit key suggestions, and local output downloads.

Test mouse and keyboard input in real time with click/scroll counters, per-key counts, reset controls, clipboard copy, and exportable reports.

Free, no-signup internet speed test. Measure download, upload, ping, and jitter against Cloudflare's global edge network — directly in your browser.

Random name picker with an animated wheel — perfect for raffles, classroom games, team standups, giveaways, and tie-breaker decisions.