Toolars Developer Toolkit

19 local tools in the side panel — plus right-click actions that encode, decode, and hash any selection. Private, offline.

Toolars puts 19 focused utilities in Chrome's side panel, so the tools you use all day stay within reach without replacing the page you are working on. Everything runs on your device. There is no account, no upload step, no analytics, and no remote code. Toolars works offline and requests only Chrome's sidePanel, contextMenus, and storage permissions. TEXT AND WRITING • Case Converter — sentence, title, UPPER, lower, camelCase, PascalCase, snake_case, and kebab-case • Letter Counter — characters, words, sentences, lines, and reading time • Whitespace Remover — collapse spaces, remove blank lines, or trim lines • Lorem Ipsum Generator • URL Slug Generator — hyphen or underscore output DEVELOPER • Base64 Encoder/Decoder — UTF-8 and URL-safe modes • HTML Encoder/Decoder • URL Encoder/Decoder — component and full-URI modes • MD5 Hash and Verify • SHA-256 Hash and Verify COLOR AND CSS • HEX to RGBA and RGBA to HEX converters • Color Mixer with adjustable weight • Color Shades with click-to-copy swatches • CSS Gradient Generator with linear and radial live preview • CSS Box Shadow Generator • CSS Border Radius Generator UTILITIES • Strong Password Generator using secure browser randomness • QR Code Generator with custom colors and PNG download RIGHT-CLICK ANY SELECTION • URLs — encode or decode them in the side panel • JSON — format and inspect it in the tree viewer on toolars.com • JWT tokens — decode header and payload on toolars.com • Unix timestamps — convert them on toolars.com • Any text — Base64 encode/decode or SHA-256 hash, computed locally • Images — compress or convert formats on toolars.com, only when you choose Selections are processed on your device and never sent to a server. No content scripts, no host permissions. BUILT FOR FOCUS • Search all 19 tools from one catalog • Keep favorites and recent tools close by • Copy output directly from each tool • Open a full-screen web version only when you choose PRIVACY BY ARCHITECTURE • Tool input and output never leave the browser • No host permissions, content scripts, analytics, ads, or tracking SDKs • Favorites and recents stay in local storage on your device • Three permissions: sidePanel, contextMenus, storage Free. No sign-up. Works offline.