Tools that stay
out of your way.
22 tools for developers and everyday use., zero tracking, Pick a tool and go.
JSON Formatter
Format, validate, minify and sort JSON
Base64 Encode / Decode
Encode or decode Base64 strings instantly
URL Encode / Decode
Percent-encode or decode URL strings
HTML Encode / Decode
Escape or unescape HTML entities
Hash Generator
SHA-1 · SHA-256 · SHA-384 · SHA-512 via Web Crypto
JWT Decoder
Decode and inspect JSON Web Tokens
Text Statistics
Characters, words, sentences, reading time
Case Converter
8 transformations — camelCase, snake_case and more
Text Diff
Line-by-line comparison using LCS algorithm
Markdown Preview
Write Markdown, see the HTML output live
Regex Tester
Live match highlighting and group extraction
Color Picker
HEX · RGB · HSL · CMYK — click any value to copy
Cron Expression Parser
Human-readable schedule descriptions
UUID / ULID Generator
Cryptographically random unique identifiers
Password Generator
Cryptographically secure, never predictable
Lorem Ipsum
Placeholder text in paragraphs, sentences or words
CSS Unit Converter
px · rem · em · vw · pt · in · cm · mm
| Unit | Value | Description |
|---|
Timestamp Converter
Unix timestamps to and from human-readable dates
Unit Converter
Length · weight · temperature · area · speed · data · time · pressure
| Unit | Value |
|---|
Number Base Converter
Decimal · Binary · Octal · Hex · ASCII
Currency Reference
24 currencies — static reference, approximate rates
Rates are approximate static references. For live rates use a currency API.
| Currency | Code | Value |
|---|
Image → Base64
Convert images to Base64 data URIs
About
Developer and project info
ConvertlyPro is a single HTML file with 22 developer and everyday tools. No build step, no backend, no tracking. Drop it on Netlify and it works. Inter + JetBrains Mono, hash-routed SPA, three themes.