Universal Encoder Toolbox
661 developer tools for encoding, hashing, crypto, formatting, and more. Fast, private, and 100% local — nothing leaves your browser.
661 tools across 25 categories — all computation happens locally.
Categories
Encoding
69 tools
Crypto
25 tools
Hash
27 tools
Format
64 tools
Text
89 tools
Time
6 tools
Network
57 tools
Color
39 tools
Image
9 tools
Table
8 tools
SQL
24 tools
HTML
25 tools
JavaScript
29 tools
API
29 tools
File
22 tools
Math
52 tools
Config
25 tools
Regex
20 tools
Identifier
20 tools
Binary
22 tools
Programming
0 tools
Database
0 tools
DevOps
0 tools
Security
0 tools
Web
0 tools
Explore by category
Encoding
Encode and decode data in various formats: Base64, URL, Hex, Binary, HTML Entity, Unicode, Base32/58/85, and more.
69 tools available
Hash
Compute cryptographic hashes and checksums: MD5, SHA-1/256/512, SHA-3, CRC32, Blake2/3, RIPEMD-160.
27 tools available
Format
Format, validate, and convert between JSON, XML, YAML, CSV, TOML, SQL, CSS, JS, Markdown, and HTML.
64 tools available
Crypto
25 tools
Text
89 tools
Time
6 tools
Network
57 tools
Color
39 tools
Image
9 tools
Table
8 tools
SQL
24 tools
HTML
25 tools
JavaScript
29 tools
API
29 tools
File
22 tools
Math
52 tools
Config
25 tools
Regex
20 tools
Identifier
20 tools
Binary
22 tools
Programming
0 tools
Database
0 tools
DevOps
0 tools
Security
0 tools
Web
0 tools
Solve a real task
All tasks →Start from the problem you are solving — each task walks you to the right tool or pipeline with verified steps.
Reusable pipelines
All recipes →Verified tool chains you can run in one click — every recipe is executed against real tools at build time.
Your workspace
Favorite tools, recent activity, and saved pipelines — organized locally in your browser, restored on every visit.
Private by design
Every computation runs in your browser. No uploads, no servers, no tracking. Your data never leaves your device.
Frequently asked questions
Is uencoder free to use?
Yes. All 661 tools and 140 workflows are completely free with no sign-up required.
Does uencoder upload my data?
No. Every tool runs entirely in your browser using JavaScript. Your input is never sent to any server — there are no uploads, no server-side processing, and no tracking of your data.
What tools are available?
Base64, URL, hex, HTML entity, JWT, hash (SHA-1/256/512, MD5), JSON/YAML/XML/CSV converters, text case, regex, QR code, Morse code, and more — 661 tools across 25 categories.
What are workflows?
Workflows are verified tool chains that solve real tasks in one click — e.g., encode then decode, format then validate, sign then verify. Each recipe is tested against real tools at build time.
Can I use these tools offline?
Yes. Since all processing is client-side, the tools work even without a network connection after the page has loaded.