Word Counter
Count words, characters, sentences, paragraphs and reading time instantly as you type.
HTML Formatter
Format, beautify and indent messy HTML code instantly. Also supports minification.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text. Also supports file encoding.
URL Encoder / Decoder
Encode special characters in URLs or decode percent-encoded URLs instantly.
JSON Formatter & Validator
Format, validate, and minify JSON data. Highlights errors with line numbers for easy debugging.
Regex Tester
Test and debug regex patterns with live highlighting.
JWT Decoder
Decode JWT tokens and inspect header and payload instantly.
Markdown Editor
Write Markdown with live preview and export HTML.
Cron Job Generator
Generate and understand cron expressions visually.
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Free Web Developer Tools — Fast, Private & No Login
DotThemes Tools's web tools collection covers the utilities developers reach for multiple times every day. Everything runs in your browser — your JSON payloads, API keys and text content never leave your device.
Our JSON Formatter beautifies, validates and minifies JSON in one click. The Base64 Encoder handles both encoding and decoding instantly. The URL Encoder encodes and decodes URLs and query strings, while the Word Counter tracks characters, words and estimated reading time.
All tools are mobile-friendly, load instantly, and require no account or subscription — ever.