
JWT Decoder
Free, privacy-first JWT decoder — inspect JSON Web Token headers, payloads, claims, and expiration. Runs entirely in your browser, zero data transmitted.
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Free, privacy-first JWT decoder — inspect JSON Web Token headers, payloads, claims, and expiration. Runs entirely in your browser, zero data transmitted.

A free, browser-based tool that instantly converts text between 14 naming conventions—camelCase, snake_case, kebab-case, PascalCase, and more. Live preview, one-click copy, privacy-first. No signup required.

A free, browser-based tool for designers, developers, and content creators to calculate aspect ratios, resize dimensions proportionally, and visualize shapes—no signup, no install.

A developer tool that decodes HTTP status codes, tests real URLs, identifies the responsible system layer, and provides actionable fix checklists—all in the browser, no signup required.

A free, browser-based tool for frontend developers to generate responsive CSS typography using clamp(). Build harmonious type scales that adapt smoothly between any viewport range—no media queries needed.

A developer tool that simulates API throughput, queue delays, and retry overhead under real-world rate limits—so you can plan integrations before they break in production.

A developer tool that instantly reveals the exact path to any key or value in nested JSON structures. Paste, click, copy—no manual tracing required.

A free, browser-based tool that helps you systematically evaluate untested beliefs and assumptions. Using structured evidence analysis and confidence scoring, it transforms vague hunches into actionable insights — all processed locally.

A developer tool that translates any cron expression into plain English and shows upcoming execution times—so you can verify your schedules before deploying.

A free, browser-based tool for backend engineers to model end-to-end request latency across microservice architectures. Estimate SLA compliance, detect bottlenecks, and simulate caching, scaling, and traffic spikes — all in the browser.

A free, browser-based tool that lets engineers visualize how algorithms scale. Pick a Big-O class, set your input size, and instantly see operation counts at 10x and 100x growth—all computed locally.

A post-meeting reflection tool that scores your communication across 5 dimensions—clarity, listening, focus, energy, and confidence—in 10 seconds. Instant score, actionable insights, 100% client-side.