Developer Tools

The small utilities developers reach for daily, with one difference that matters: everything runs locally, so production tokens and payloads are never pasted into a stranger's server.

Developer हरूले दैनिक चलाउने साना utility हरू, एउटा महत्त्वपूर्ण फरकसहित: सबै काम local मा हुन्छ, त्यसैले production token र payload हरू कहिल्यै अपरिचितको server मा टाँस्नु पर्दैन।

JSON Formatter & Validator

Format, beautify, minify and validate JSON online for free. See the exact parse error when JSON is invalid. Runs in…

Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 back to text online, free. Unicode-safe, so Nepali and other non-English text…

URL Encoder & Decoder

Percent-encode or decode URLs and query strings online for free. Component mode for query values, full-URL mode that…

JWT Decoder

Decode a JSON Web Token in your browser: header, payload claims and expiry time in readable form. The signature is…

Hash Generator, SHA-1 / SHA-256 / SHA-512

Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text online, free, using your browser's crypto engine.…

UUID Generator, v4, Bulk

Generate random UUID v4 values in bulk, free: choose the count, uppercase or lowercase, with or without hyphens. Uses…

CSV ⇄ JSON Converter

Convert CSV to JSON or a JSON array of objects to CSV, online and free, in your browser. Handles quoted commas and…

Slug Generator, URL Slug Maker

Turn any title into a clean URL slug online for free: lowercase, hyphens, no special characters. Works line by line…

Text Diff Checker

Compare two texts line by line online for free: added lines, removed lines and unchanged context, highlighted. Runs…

Lorem Ipsum Generator

Generate classic Lorem Ipsum placeholder text online: choose paragraphs, sentences or words. For layouts, mockups and…

Color Converter, HEX ⇄ RGB ⇄ HSL

Convert colours between HEX, RGB and HSL online for free, with a live preview swatch. For CSS, design tools and…

Frequently asked questions

Is it safe to paste a JWT here?

Yes, decoding happens in your browser only; nothing is sent anywhere.

Do the tools work offline?

Once the page has loaded, yes, everything on it is local.

के यहाँ JWT टाँस्नु सुरक्षित छ?

छ, decoding तपाईंको browser मा मात्र हुन्छ; केही पनि कतै पठाइँदैन।

के tool हरू offline चल्छन्?

Page load भइसकेपछि चल्छन्, यसमा भएका सबै कुरा local छन्।