Free, simple online tools for developers and casual users alike.
Compare two pieces of text and highlight the differences.
Replace multiple text strings or extract data from a block of content at once.
Process text line by line with 12 powerful operations.
Count characters, words, and lines in a text block.
Convert text to various cases like uppercase, camelCase, etc.
Convert Chinese text between Simplified and Traditional scripts, detect the current script, and choose the output format you need.
Convert Chinese characters to Pinyin with multi-character word matching, using pinyin dictionary from Switch Traditional Chinese and Simplified Chinese script.
Convert text characters to their Unicode representations.
Convert images to Base64 strings.
Convert images to ICO format.
Upload multiple images and merge them into a single PDF file.
Convert SVG icons or code into Base64 data URLs.
Convert WEBP images to GIF format, with support for animations.
Upload an image and generate multiple resized versions.
Create animated avatars from photos with various effects.
Extract colors from images, supporting HEX, RGB, HSL and other formats.
A 3D Christmas tree where you can hang your photos.
Split images into custom grids. Ideal for social media, puzzles, and Gemini Nano Banana Pro emoji packs.
Encode text to Base64 or decode from it.
Encode or decode special characters in URLs.
Encode and decode HTML entities like and <.
Convert text to Morse code and back with multiple input methods.
Decode JSON Web Tokens to inspect their payload.
A tool for encrypting and decrypting text using the Baijiaxing (Hundred Family Surnames) cipher.
Convert ASS/SSA subtitles to SRT format.
Convert between Unix timestamps and human-readable dates.
Convert colors between HEX, RGB, and HSL formats.
Cut and trim audio files with advanced effects like fade in/out, pitch, and speed control.
Validate and format your JSON code to ensure it is correct.
Test your regular expressions with this online tool.
Write Markdown and see a live preview.
Preview syntax-highlighted code with multiple languages, themes, and quick copy tools.
Generate ASCII art from text or images using various fonts and sizes.
Create a QR code from a URL or text.
Scan and decode QR codes from images or camera.
Generate various hashes like MD5, SHA-256 from text.
Generate random strings with customizable length and character options.
Generate prompts for divination to ask AI models.
Encrypt and decrypt text using symmetric algorithms like AES.
Test HTTP API requests directly from your browser. Customize URL, method, headers, body, and view full response details.
Fast mathematical expression calculator with support for symbolic variables, smart symbol conversion, and history.
A simple scoreboard to keep score.
Open multiple URLs at once.
A fun wheel to help you make decisions by spinning to a random choice.
Browse and copy emojis organized by categories with instant search.
Extract files from ZIP archives directly in your browser.
Create ZIP archives from files and folders directly in your browser.
Record your screen, window, or tab with audio.