Category
Free Developer Tools
Free online developer tools — Base64 encode/decode, and more utilities for developers.
Base64 Decode
Free online Base64 decoder — paste a Base64 string and instantly get the decoded text output.
Base64 Encode
Free online Base64 encoder — paste any text and instantly get the Base64-encoded output.
CSS Minifier & Beautifier
Minify or beautify CSS code instantly in your browser — free online CSS compressor and formatter.
CSV to JSON Converter
Convert CSV to JSON instantly in your browser — free online CSV to JSON converter with validation.
HTML Decode
Free online HTML decoder — convert HTML entities like &, <, and > back to their original characters.
HTML Encode
Free online HTML encoder — escape special characters like <, >, &, and quotes into safe HTML entities.
JavaScript Minifier & Beautifier
Minify or beautify JavaScript code instantly in your browser — free online JS compressor and formatter.
JSON Formatter
Format and prettify minified JSON instantly in your browser — free online JSON beautifier with syntax validation.
JSON to CSV Converter
Convert JSON to CSV instantly in your browser — free online JSON to CSV converter.
JSON to YAML Converter
Convert JSON to YAML instantly in your browser — free online JSON to YAML converter.
JWT Decoder
Decode a JSON Web Token (JWT) and inspect its header and payload — free, instant, and nothing is sent to a server.
Regex Tester
Test regular expressions online — enter a pattern and flags, paste your test string, and instantly see all matches highlighted.
SHA-1 Hash Generator
Generate SHA-1 hashes instantly in your browser — free online SHA-1 hash generator for text and strings.
SHA-256 Hash Generator
Generate SHA-256 hashes instantly in your browser — free online SHA-256 hash generator for text and strings.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and times, or convert a date back to a Unix timestamp — free and instant.
URL Decode
Free online URL decoder — paste any percent-encoded URL string and instantly see the decoded output.
URL Encode
Free online URL encoder — paste any text and instantly get the percent-encoded output safe for use in URLs.
UUID Generator
Generate random UUIDs (v4) instantly in your browser — free, no sign-up, nothing sent to a server.
XML Formatter & Validator
Format, beautify, and validate XML code instantly in your browser — free online XML beautifier.
YAML to JSON Converter
Convert YAML to JSON instantly in your browser — free online YAML to JSON converter with validation.
A collection of free online tools built for developers. Encode and decode Base64 strings, and more. Every tool runs entirely in your browser — no account required, nothing is sent to a server.