10015 Developer Toolkit

by Fatih Telis · 10015.io · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

17 built-in developer tools in your sidebar. Convert text, encode/decode, generate hashes, mix colors & more.

Users

20K

0 in 30 days

Rating

4.7 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#6,327

#5,473 among extensions

Version

2.0.0

updated 1 Mar 2026

Users

monthly, 3 years

Latest, 15 Oct 2026: 20,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 15 Oct 2026: 15 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About 10015 Developer Toolkit

10015 Developer Toolkit brings essential web development tools directly into your browser sidebar — no need to open a new tab or visit a website. 17 tools run built-in within the extension, working instantly and offline. For 50+ additional tools, the extension connects you to 10015.io. RIGHT-CLICK TO TRANSFORM Select any text on a webpage, right-click, and instantly convert case, encode/decode Base64, URL encode, generate hashes, and more. Results are copied to your clipboard automatically. BUILT-IN TOOLS (work offline, no internet needed) • Text Tools - Case Converter (uppercase, lowercase, title, camel, snake, kebab & more) - Letter Counter - Whitespace Remover - Lorem Ipsum Generator • Coding Tools - Base64 Encoder/Decoder - URL Encoder/Decoder - HTML Encoder/Decoder - URL Slug Generator - JSON Tree Viewer - JWT Decoder - Hash Generator (MD5, SHA-1, SHA-256, SHA-384, SHA-512) • Color Tools - HEX to RGBA Converter - RGBA to HEX Converter - Color Shades Generator - Color Mixer • Miscellaneous - Strong Random Password Generator - List Randomizer 50+ MORE TOOLS ON 10015.IO Access all other tools directly from the extension, including Text to Handwriting Converter, Tweet to Image Converter, Code to Image Converter, Scanned PDF Converter, Image Cropper, CSS Gradient Generator, QR Code Generator, Instagram Filters, and many more. FEATURES ✓ Side panel — stays open while you browse ✓ Right-click context menu — transform selected text on any page ✓ Offline support — built-in tools work without internet ✓ Search — find any tool instantly ✓ Clipboard — results copied with one click Powered by 10015.io — the free all-in-one online toolbox.