BYTEKIT
dev tools
Home Tools
⚡ 12 Free Tools
100% Browser-Based · No Login · No Tracking

The developer toolkit
built for speed

ByteKit gives you 12 powerful, instant tools — JSON, CSS, JS & HTML Formatters, Regex, JWT, Base64, Hashes, Colors, URL & Markdown. Everything runs in your browser. Nothing leaves your machine.

12
Free Tools
0ms
Server Lag
$0
Forever Free
100%
Private
// tools
All 12 Tools
Click any tool to open it instantly. All processing happens in your browser — zero server round-trips.
{ }
JSON Formatter
Format, minify, sort keys and validate JSON with live stats.
Most Popular
✦
CSS Formatter
Beautify and format messy CSS code with custom indentation.
New
JS
JS Formatter
Beautify or minify JavaScript code. Clean up messy JS instantly.
New
</>
HTML Formatter
Indent and beautify HTML markup. Also minifies for production.
New
/…/
Regex Tester
Live regex matching with flag controls and group capture display.
Real-time
⇌
Base64 Encoder
Encode text to Base64 or decode Base64 back to plain text.
Encode/Decode
🔐
JWT Decoder
Decode JWT tokens — header, payload and expiry validation.
Decode
#
Hash Generator
Generate SHA-1, SHA-256 & SHA-512 via browser's native Crypto API.
SHA 1·256·512
◉
Color Converter
Convert HEX ↔ RGB ↔ HSL with live preview & CSS variable export.
HEX·RGB·HSL
🔗
URL Encoder
Encode, decode and parse URL query parameters with clean output.
Parse/Encode
📝
Markdown Preview
Write Markdown and see a live rendered preview side-by-side.
Live Preview
⊟
CSS Minifier
Strip comments and whitespace from CSS with exact byte savings shown.
Minify
// features
Why ByteKit?
Designed around real developer workflows
⚡
Zero Latency
No server round-trips. Every tool runs entirely in your browser — instant results every time.
🔒
Private by Design
Your code, tokens and data never leave your machine. No analytics on your input data.
📱
Works Everywhere
Fully responsive on desktop, tablet and mobile. No install required — works in any browser.
💸
Always Free
All 12 tools free forever. No paywalls, no sign-up, no credit card ever required.
{ } JSON FORMATTERFormat · Minify · Sort Keys · Validate
Indent:
Input JSON
Output
Lines 0
Size 0B
Keys 0
✦ CSS FORMATTERBeautify messy CSS code with proper indentation
Indent:
Input CSS
Formatted CSS
Input Size 0B
Lines 0
JS FORMATTERBeautify or minify JavaScript code
Indent:
Input JavaScript
Output
Input Size 0B
Lines 0
</> HTML FORMATTERIndent and beautify HTML markup
Indent:
Input HTML
Formatted HTML
Input Size 0B
Lines 0
/…/ REGEX TESTERLive regular expression testing
Pattern
Flags:
Test String
Matches
⇌ BASE64 ENCODER / DECODEREncode text to Base64 or decode back
Input
Output
Input 0B
Output 0B
🔐 JWT DECODERDecode and validate JWT tokens
JWT Token

Header
—
Payload
—
Signature
—
# HASH GENERATORSHA-1 · SHA-256 · SHA-512
Input Text

SHA-1
—
SHA-256
—
SHA-512
—
◉ COLOR CONVERTERHEX ↔ RGB ↔ HSL
HEX
RGB
HSL
CSS Variables
🔗 URL ENCODER / DECODEREncode, decode and parse URL parameters
Input
Output
📝 MARKDOWN PREVIEWERLive rendered Markdown preview
Markdown Source
Preview
Words 0
Chars 0
Lines 0
⊟ CSS MINIFIERRemove whitespace & comments to shrink CSS file size
Original CSS
Minified CSS
Original 0B
Minified 0B
Saved 0%