# Extensionsly > A local-first browser-extension studio for Chrome and Edge. Core processing stays in the browser; optional sync, backup, AI and sharing connect only when the user enables them. No data is sold. The website interface supports 19 languages. Operated by MDL Asia Sdn Bhd (https://mdlzone.com). Support: Support@Extensionsly.com. ## Extensions - [AuthRoam](https://extensionsly.com/extensions/authroam/): Multi-environment API auth token cockpit (verified manual Chrome package available; manual updates required; Pro checkout available) - [NetworkRules](https://extensionsly.com/extensions/networkrules/): Intercept, rewrite and mock network requests (verified manual Chrome package available; manual updates required; Pro checkout available) - [ReproKit](https://extensionsly.com/extensions/reprokit/): Zero-signup, locally-redacted bug repro packager (verified manual Chrome package available; manual updates required; Pro checkout available) - [CookieVault](https://extensionsly.com/extensions/cookievault/): Local-first cookie editor and auto-cleaner (verified manual Chrome package available; manual updates required; Pro checkout available) - [Image Converter](https://extensionsly.com/extensions/pixsafe/): Local, auditable image format conversion (verified manual Chrome package available; manual updates required; Pro checkout available) - [CiteRoam](https://extensionsly.com/extensions/citeroam/): Privacy-first academic citation sidebar (verified manual Chrome package available; manual updates required; Pro checkout available) - [ProofJump](https://extensionsly.com/extensions/proofjump/): Verify AI answers sentence-by-sentence (verified manual Chrome package available; manual updates required; Pro checkout available) - [DozeKeep](https://extensionsly.com/extensions/dozekeep/): Tab suspension + never-lose sessions + cloud backup (verified manual Chrome package available; manual updates required; Pro checkout available) - [Dev Toolbox](https://extensionsly.com/extensions/devtoolbox/): Bundled client-side developer utilities — JWT, Base64/URL, timestamp, UUID, regex — in one popup. (verified manual Chrome package available; manual updates required) - [JSONPeek](https://extensionsly.com/extensions/jsonpeek/): Inspect and format JSON responses inline (verified manual Chrome package available; manual updates required) - [Contrast Checker](https://extensionsly.com/extensions/contrastchecker/): Computes color contrast ratios and flags AA/AAA WCAG compliance across a page. (verified manual Chrome package available; manual updates required) - [Screen Ruler](https://extensionsly.com/extensions/screenruler/): Overlay ruler to measure spacing, pixels, and element boxes, with optional color picking. (verified manual Chrome package available; manual updates required) - [Font Finder](https://extensionsly.com/extensions/fontfinder/): Hover any element to reveal its font, weight, and size, and copy the CSS font stack. (verified manual Chrome package available; manual updates required) - [PDF to Image](https://extensionsly.com/extensions/pdftoimage/): Fully local PDF-to-image and image-to-PDF conversion — files never leave the browser. (verified manual Chrome package available; manual updates required) - [PDF Merge](https://extensionsly.com/extensions/pdfmerge/): Merge, split, and reorder PDF pages fully locally, with nothing uploaded. (verified manual Chrome package available; manual updates required) - [Word Counter](https://extensionsly.com/extensions/wordcounter/): Instant word, character, and reading-time counts on any selected text. (verified manual Chrome package available; manual updates required) - [Case Converter](https://extensionsly.com/extensions/caseconverter/): Popup case conversion plus text cleanup and slugify. (verified manual Chrome package available; manual updates required) - [Image OCR](https://extensionsly.com/extensions/ocrimage/): Screenshot a region and extract its text locally — images stay in the browser. (verified manual Chrome package available; manual updates required) ## Key pages - [Home / catalog](https://extensionsly.com/): browse every extension by category - [Bundle](https://extensionsly.com/bundle/): public checkout unavailable; waitlist status and planned details - [Blog / notes](https://extensionsly.com/blog/): development notes; evidence-gated drafts remain noindex - [About](https://extensionsly.com/about/): who we are and how we test ## Contact - Email: Support@Extensionsly.com - Company: https://mdlzone.com ## Privacy The website uses cookieless Cloudflare Web Analytics for aggregate traffic and Web Vitals, plus Workers Analytics Engine for bounded installation, waitlist and checkout events. Event rows contain only product, plan/action, query-free page path and language; no email, account ID, IP address, cookie, free text or cross-site profile is written to the dataset. - Full reference (all products, pricing, privacy, FAQ): https://extensionsly.com/llms-full.txt