JWT Decoder, Base64 & URL Encode/Decode, JSON Formatter, Hash Generator
Decode JWT, Base64 & URL offline — 100% local processing. JSON format/minify, SHA-256/MD5 hashes, history, right-click menu.
Binary, hex, decimal, text, Base64 & IP converter with IPv4/IPv6/CIDR support, smart format detection, history, and one-click copy.
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BitShell is a fast, fully offline conversion tool for developers,
security researchers, students, and system administrators who work with
encodings and number systems daily. No websites. No tracking. No data
ever leaves your machine.
Key Features
Universal Conversion
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Store average score: 5.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Decode JWT, Base64 & URL offline — 100% local processing. JSON format/minify, SHA-256/MD5 hashes, history, right-click menu.
Convert Markdown to Word and back. Easily transform md to docx and Word to Markdown with one click. Fast, offline!
Encode/decode: Base64/URL/Unicode/Hex/HTML, MD5/SHA hash, UUID/GUID. Offline, 10 languages.
40+ developer tools: JSON formatter, Base64/URL encoder, hash generator, JWT debugger, regex tester, and more
Quickly convert images to Base64 text and back. Simple, offline, and permission-free.
A simple calculator with history for quick calculations
Definitely helpful for my math classes.
Before discovering this masterpiece of an extension, I was out here dividing by 8 like an absolute mongrel, a caveman whom is just discovering fire. Every time someone said “megabits,” I had to pause, stare into the distance, and question my entire understanding of technology and basic mathematics. Nodding like I understood, but secretly needing to open a new incognito tab of GPT and ask for both the answer and forgiveness. Then I installed this extension. Suddenly, conversions happened instantly. Bits? Converted. Bytes? Handled. Kilobits? Trembling before me. I felt like I had just unlocked admin access to the universe. I no longer convert bits to bytes like some sort of medieval peasant. I am the true ruler of bits in comp sci. I am become John BitShell. I don’t know what kind of sorcery powers this, but Next thing I know, my crops are growing faster, my skin is clearer, and my WiFi signal improved. I will be recommending this to my higher ups at NASA. 1010/A. Would convert again.
Good
was very helpful
Clean UI, faster than the online options, and way more conversion options than other extensions I’ve tried. Super handy.
Very Useful for my math classes