DevKit Forge — Developer Toolbox

80 free developer tools in your side panel: JSON, regex, encoding, an API client, page and accessibility checks. All local.

DevKit Forge — All-in-One Developer Side Panel DevKit Forge brings 80 essential developer tools into a side panel right next to your active webpage. Completely free, running entirely inside your browser with no backend servers, no account required, and zero user tracking (optional anonymous crash reporting available). Data & Formats Parse, format, validate, and compare structured data directly in your browser. Easily convert JSON into strongly-typed models such as TypeScript, Zod, JSON Schema, or Go. Support for major markup, styling, scripting, and query formats with built-in previewers and optimizers. Seamless schema validation, mock data generation, and efficient handling of large files up to 200 MB. Quick conversion between configuration files, data tables, and web content. Encoding, Security & Secrets Convert text between common web representations, binary, and hexadecimal formats. Inspect JWT headers, X.509 certificates, and generate cryptographic hashes or HMAC signatures. Scan text or imported files to detect and redact accidentally exposed API keys, tokens, and passwords. Text, Logs & Time Utilities Built-in regular expression tester, text transformations, diff viewers, and workflow automation recipes. High-performance log viewer that parses structured and plain logs up to 200 MB into filterable tables with automatic secret masking. Quick helpers for timestamps, cron schedules, numerical conversions, unique identifiers, and code snippet references. Design & Styling Tools Advanced color converters supporting modern color spaces, palette generation from images, and WCAG contrast checks. Visual builder suite for gradients, box shadows, border radii, and utility CSS frameworks. Page & Accessibility Inspection Inspect page elements, test selectors, check diagnostics, and evaluate site performance on demand. Complete accessibility toolkit including WCAG 2.2 checklists, visual deficiency simulators, and exportable audit reports. Visual QA layout checkers, viewport testing, cookie and storage management, and realistic mock form filling. API & Network Client Fully functional API testing environment supporting collections, environments, cURL workflows, and code generation. Schedule local API checks, inspect WebSockets or event streams, and review response security headers. Export bug reports and accessibility issues directly to issue trackers using your own tokens. Browser Integration & Privacy Dedicated DevTools tab to inspect, copy, or test live page requests in the API client. Global quick-action shortcuts and command palette to transform clipboard contents instantly. Pure local processing: all inputs stay within your browser and are never transmitted externally.