Everything on sourcecodestack

Overview of all tools, apps, and resources

Our story, mission, and privacy philosophy

Meet the team behind sourcecodestack

Get in touch with feedback or questions

Frequently asked questions about the platform

In-depth articles, tutorials, and guides

Browse the complete tools directory

Format, validate, and minify JSON data

Generate MD5, SHA-1, SHA-256, SHA-512, and JWT tokens

Encrypt and decrypt text with AES and Base64

Live HTML, CSS, and JavaScript editor with preview

Validate HTML, CSS, and JavaScript code

Test REST APIs without Postman or installing software

Create and test fake API endpoints for development

Inspect file format, metadata, MIME type, and size

View and analyze CSV and Excel files in the browser

Minify web assets to reduce file size and improve speed

Check if a website is online and responding

Create and extract ZIP archives in the browser

Transform text: case conversion, word count, deduplication, slug generator

Calculate date differences, add/subtract time, timezone conversion

Compare prices per unit to find the best value when shopping

Test every key and mouse button to diagnose hardware issues

Test and improve your typing speed with WPM tracking

Pick colors, generate palettes, and check contrast ratios

Create perfectly sized graphics for Instagram, Twitter, LinkedIn, and more

Merge, split, compress, convert, and annotate PDF files

Annotate, highlight, fill forms, and sign PDF documents

Listen to PDF documents with text-to-speech technology

Convert between JPEG, PNG, WebP, AVIF, GIF, BMP, TIFF, and ICO

Browse all available games

Classic three-in-a-row strategy game

Play against the computer

Test your memory with card matching

Guess the secret number

Classic word guessing game

Test your mental arithmetic

Measure your reaction speed

Unscramble letters to find the word

How we handle (or don't handle) your data

Terms governing your use of sourcecodestack

Important disclaimers about the platform

Browse the complete articles index

Multi-track timeline, FFmpeg, transitions & export

Improve WPM with timed tests and difficulty levels

Text-to-speech for PDFs with word highlighting

Edit, annotate, sign, and protect PDFs online

Test REST APIs with auth, headers, and history

Run JS, TS, Python, HTML & SQL in your browser

Prettify, validate, minify, and compare JSON

Simulate REST endpoints without a backend

Lint HTML, CSS, JS & more in your browser

SHA-256, MD5, Base64, JWT & HMAC online

Check any URL's status and response time

AES-256 encryption, RSA keys & password generator

Diagnose any key or button in your browser

Create, extract & preview ZIP archives

Inspect MIME type, EXIF data, and file hash

Reduce code size for production builds

Open, filter, sort & export spreadsheets

Convert HEX/RGB/HSL and generate color harmonies

Word count, case convert, sort lines & more

Business days, age, countdowns & duration

Find best value across pack sizes with unit conversion

Play vs unbeatable minimax AI or a friend

Train short-term memory with card flip game

Benchmark your reflexes in milliseconds

Guess tech vocabulary before running out of chances

Sharpen mental arithmetic with timed challenges

Unscramble jumbled letters in timed rounds

Classic hand game vs computer AI

Hot/cold feedback to find the hidden number

Create assets for all platforms

PNG vs JPG vs WEBP vs AVIF compared

Reduce file size without losing quality

DPI, PPI, and resolution for print and screen

Build polished PDFs from images

Convert hundreds of images at once

RGB vs CMYK vs sRGB vs Adobe RGB