
Encoding Explorer
A developer tool that converts text into multiple encoding formats simultaneously—Base64, URL encoding, HTML entities, Unicode escapes, Hex, Binary, and SHA-256—all in one view, no signup required.
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A developer tool that converts text into multiple encoding formats simultaneously—Base64, URL encoding, HTML entities, Unicode escapes, Hex, Binary, and SHA-256—all in one view, no signup required.

A free online robots.txt generator that helps you create, validate, and export robots.txt files for your website. Control how search engine crawlers access your content — no sign-up required.

A free online tool that converts between YAML and JSON formats instantly. Paste YAML to get JSON, or JSON to get YAML. Supports nested objects, arrays, comments, and multi-document YAML—100% client-side, no signup required.

A browser-based tool for creating custom placeholder images with precise dimensions, colors, text overlays, and multi-format export. Perfect for mockups, wireframes, and rapid prototyping.

A visual tool that helps developers construct complex git commands without memorizing syntax. Pick an operation, toggle flags, fill in values, and copy the ready-to-run command—all in the browser.

A free visual CSS border-radius editor that lets you adjust each corner individually, preview the shape in real time, use presets, and copy production-ready CSS—no signup required.

A free browser-based tool that encodes and decodes URLs instantly with encodeURIComponent and encodeURI modes, multi-line batch processing, and a common encodings reference—100% client-side, no signup required.

A free browser-based visual CSS Grid layout builder with an interactive grid editor, drag-to-resize areas, live code preview, and one-click copy—no signup required.

A free browser-based tool that converts between CSS units (px, rem, em, vw, vh, %, pt) in real time with customizable base font size and viewport dimensions—no signup required.

A free browser-based visual markdown table builder with an interactive grid editor, column alignment controls, live preview, import/export, and one-click copy—no signup required.

A free browser-based tool that calculates CSS selector specificity in real time, compares multiple selectors visually, and explains per-part scoring—no signup required.

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

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 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 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 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 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 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 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.

A free self-authorization tool that generates personalized permission slips. Stop waiting for validation—give yourself permission to ship, rest, pivot, or say no. 100% client-side, nothing leaves your browser.

A goal-tracking calculator that reveals the true compounding cost of daily distractions. Enter your goals, add your interruptions, and see the cold math of lost focus—hours, missed targets, and extended timelines.

A 100% local and private PDF & presentation manager. Upload, organize, tag, and preview your decks directly in the browser — no cloud, no sign-up, no tracking.

A free, privacy-first habit collapse predictor. Track multiple habits, calculate collapse risk, measure volatility, and predict exactly when your streak will break — 100% client-side, no sign-up required.

A free, minimalist browser-based focus timer for building consistent habits. Preset durations, visual progress circle, sound alerts, keyboard shortcuts, and zero tracking — 100% client-side.

A private, client-side file comparison tool. Paste text or upload files to compare line-by-line diffs in side-by-side or inline view—nothing ever leaves your browser.

A free browser-based developer tool for opening browser windows at exact pixel dimensions. Perfect for taking pixel-perfect screenshots for any device or resolution — no install required.

A life visualization tool that renders your entire lifespan as a grid of weeks. Track milestones, see how many weeks you've lived, and make every one count—100% client-side, no sign-up required.

A multi-criteria decision analysis tool that helps you make better choices. Define criteria with custom weights, score options on a 1–10 scale, and see ranked results instantly—100% client-side, no sign-up required.

Check WCAG 2.1 color contrast ratios instantly. Pick any foreground and background color, see the contrast ratio, AA/AAA accessibility levels, and a live text preview—all in your browser. Free, private, no signup.

Test your SMTP server credentials and send diagnostic emails instantly. Verify connection, authentication, and delivery with real-time step-by-step results—your credentials never leave the request.

An interactive browser-based tool to visualize and analyze your package.json dependencies. Features security warnings, dependency statistics, and type-coded visualization.

Design your database visually. Drag tables, connect relations, and export PostgreSQL, MySQL, SQLite, Prisma, Drizzle & TypeORM schemas — all in your browser, no login required.

A privacy-first expense splitting web app with offline support. Split expenses with friends, calculate balances instantly, and settle up with zero friction—no sign-up required, data stays on your device.

Extract beautiful color palettes from images, generate harmonious color schemes, and export them in multiple formats for design tools — all in your browser.

Format, minify, and validate JSON data instantly. A fast, privacy-first tool with syntax highlighting powered by Monaco Editor—all processing happens in your browser.

Mission Control dashboard for OpenClaw AI agents. Assign tasks, monitor real-time status, review deliverables, and coordinate your AI team—all from one Kanban-style interface with lead orchestrator verification.

Free regex tester and debugger with real-time match highlighting, pattern explanations, and a comprehensive cheat sheet.

Free tool to transform plain screenshots into stunning visuals with custom backgrounds, device frames, shadows, and more.

Free bulk URL extractor for sitemaps. Extract thousands of URLs, search and filter results, export to CSV/TXT/JSON. No sign-up required.

Free sitemap finder and checker tool. Discover all sitemaps on any website, validate XML structure, and count total URLs instantly.

Create professional logos with geometric shapes and typography—all in your browser. 100% client-side processing, real-time canvas editing with Konva.js, and export to PNG/SVG with transparent backgrounds.
Upload an image, get all favicon sizes + manifest.json. 100% client-side processing—your images never leave your browser. Generate 16x16 to 512x512, apple-touch-icon, and android-chrome icons.

See how your links look before you share. A beautiful, fast Open Graph card previewer that shows how your website appears when shared on Twitter, Facebook, LinkedIn, Slack, Discord, and WhatsApp.

Powerful social media scheduler application with AI-powered content optimization. Schedule, manage, and optimize your social media posts across multiple platforms with intelligent automation.

Create stunning, professional flyers effortlessly with FlyerAura. Design, customize, and share beautiful flyers for your business, events, and marketing campaigns.

A curated collection of developer templates built for SaaS entrepreneurs, indie developers, and startups. Whether you're looking for boilerplate code, UI components, or full-fledged project starters, Developer Templates is the place to find them.

Accelerate your development workflow with our curated collection of ready-to-use SaaS templates. Get started quickly with pre-built UI components and backend integrations.

Effortlessly generate custom images with our JSON API-powered Image Generation App. Generate images with custom text, color, and image.
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