✦ 100% Free · No Signup · No Tracking

FreeToolKit

Tiny tools that do one thing perfectly. No accounts. No bloat. Just results.

Word & Character Counter

Analyze text instantly: word count, character count, reading time, Flesch-Kincaid readability score, keyword density, and stop-word filtering. Ideal for content writers, SEO professionals, and students tracking essay length requirements.

Text Case Converter

Convert text between 11 different case styles: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, dot.case, TOGGLE, and aLtErNaTe. Instantly format for code, URLs, and social media.

Markdown Preview & Renderer

Write Markdown on the left, see live preview on the right. Export to HTML, copy formatted text, and debug Markdown syntax instantly. Perfect for README files, blog posts, and documentation.

Text Diff & Compare

Compare two pieces of text side-by-side and instantly see the differences highlighted. Perfect for code reviews, contract changes, and detecting plagiarism. Copy the diff in multiple formats.

CSV to JSON Converter

Transform CSV data into properly formatted JSON with a single click. Reverse conversion also supported. No limits on file size, and your data stays private on your device.

JSON Formatter & Validator

Instantly format, validate, and minify JSON code with a live tree view. Catch syntax errors before they break your API calls. Perfect for debugging API responses, beautifying minified code, and sharing readable JSON with your team.

Regex Tester & Debugger

Test and debug regular expressions in real-time with live matching and detailed match breakdowns. Supports all major regex flavors and includes a pattern library for common use cases. No regex knowledge required.

Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 strings instantly. Essential for encoding credentials, API keys, and data for transmission. Works with plain text and binary-safe encoding—no server required.

URL Encoder & Decoder

Encode and decode URLs instantly to fix special characters and percent-encoding issues. Perfect for building query strings, debugging URL parameters, and ensuring compatibility across platforms.

Hash Generator (MD5, SHA-256)

Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512) for any text input. Verify file integrity, create checksums, and debug authentication systems. Includes copy-to-clipboard and batch processing.

Color Converter

Convert colors instantly between HEX, RGB, HSL, and CMYK formats with a live color picker. Includes a shade palette generator and percentage calculator. Perfect for designers, developers, and anyone working with color codes.

Gradient Maker

Create beautiful linear and radial CSS gradients with an intuitive interface. Add unlimited color stops, adjust angles and positions, and copy ready-to-use CSS code instantly. Includes 12+ preset gradients.

Color Contrast Checker

Check if your text/background combo passes WCAG accessibility standards (AA and AAA). Helps ensure your design is accessible to all users, including those with color vision deficiency.

Invoice Generator

Create professional invoices in seconds with customizable line items, tax, discounts, and currency options. Download as PDF or print directly. Includes payment tracking and auto-numbering for client management.

QR Code Generator

Generate QR codes instantly for URLs, text, WiFi networks, emails, and phone numbers. Customize colors, adjust size, and download as PNG. Perfect for marketing materials, event tickets, and contact sharing.

business 🛡️

Password Generator & Strength Checker

Generate cryptographically secure passwords with customizable length and character types. Includes real-time strength meter, entropy calculation, and session history. No password stored—all processing happens on your device.

Unit Converter

Convert between all major units instantly: length, weight, volume, temperature, speed, time, and more. Includes historical and metric conversions. Bookmark your favorites for one-click access.

converter ⏱️

Timestamp Converter

Convert between Unix timestamps and human-readable dates instantly. Live clock shows current Unix time. Supports milliseconds and seconds, with timezone awareness built in.

URL Slug Generator

Convert any text into SEO-friendly URL slugs automatically. Removes special characters, converts spaces to hyphens, and ensures lowercase formatting. Essential for creating clean URLs for blog posts and pages.

converter ✉️

Email Validator

Validate email addresses instantly and check for common formatting issues. Gives you confidence before sending to a contact. Supports bulk validation for lists.

Username Generator

Generate creative usernames across 7 themes: aesthetic, gamer, professional, funny, dark, nature, and cyberpunk. Each theme offers 12+ style variations. Perfect for gamers, content creators, and anyone starting fresh online.

Decision Wheel / Spin Wheel

Add your options, spin the wheel, and let physics-based animation make the decision for you. Perfect for choosing between options, team activities, and breaking decision deadlocks. Includes animation controls and result history.

Pomodoro Timer

Elegant productivity timer with 25-minute work sessions, 5-minute breaks, and 15-minute long breaks. Visual ring timer, session statistics, and notification bell. Track your focus and boost productivity instantly.

Morse Code Translator

Translate text to Morse code and decode Morse back to text. Includes audio playback (dots and dashes), copy-to-clipboard, and a complete Morse alphabet reference. Fun for learning or sending secret messages.

Frequently Asked Questions

Are FreeToolKit tools really free?

Yes, all 23 tools are 100% free. No signup, no ads, no hidden fees. Optional tips help keep servers running and new tools coming.

Is my data private on FreeToolKit?

Completely private. All processing happens in your browser. We don't store, track, or sell any data. Your information never leaves your device.

Do I need to create an account?

No accounts needed. Just visit a tool and start using it instantly. Zero friction, zero signup forms.

Which tools are best for developers?

Try our JSON Formatter, Regex Tester, Hash Generator, Base64 Encoder, URL Encoder, and CSV to JSON Converter. All built for instant productivity.

Can I use FreeToolKit offline?

Most tools work offline after the initial page load. Some features like QR download may require connectivity for downloads.