Free tools for developers and founders — format JSON, generate passwords, test regex, compress images, audit SEO, and more. All free, no sign-up required.
Validate ideas, estimate costs, and plan your tech strategy.
Get an instant, itemised estimate for your mobile or web app. Compare against freelancers and US agencies.
Paste your idea and get an AI viability score across market size, competition, timing, and execution risk.
Enter any URL for an instant SEO audit — title tags, meta descriptions, speed signals, and mobile readiness.
Type your industry and style preference. Get 8 brandable name ideas with domain availability hints.
Tell us your app type, team size, and priorities. Get a curated stack recommendation with clear rationale.
Describe your project and get an instant AI-powered estimate of development hours, cost, timeline, team composition, and risks.
Estimate how much your business could save with AI automation. Input team details and get instant ROI results.
Everyday utilities that run entirely in your browser. No data leaves your machine.
Paste JSON to format, minify, or validate with syntax highlighting. Instant error detection.
Generate secure random passwords with customizable length, character sets, and strength meter.
Convert between HEX, RGB, and HSL formats instantly. Preview swatch and quick-pick popular colors.
Generate placeholder text — paragraphs, sentences, or words. Customizable count with one-click copy.
Encode text or files to Base64, or decode Base64 back to plain text. Supports file upload.
Write Markdown on the left, see rendered HTML on the right. Copy clean HTML output.
Generate SEO-optimized meta tags with live Google preview. Includes OG and Twitter card tags.
Test regular expressions with real-time highlighting, match details, and flag controls.
Compress images in your browser using the Canvas API. Drag-and-drop, quality slider, before/after comparison.
Generate a comprehensive privacy policy for your website. Customizable data types and third-party services.
Build cron expressions visually with dropdowns, presets, and human-readable descriptions. Preview next 5 run times.
Decode and inspect JWT tokens instantly. View header, payload, and signature with color-coded JSON.
Test REST API endpoints with custom methods, headers, and body. View formatted responses with timing.
Format and beautify SQL queries with syntax highlighting. Uppercase keywords, customizable indentation.
Convert between Unix timestamps and human-readable dates. Live clock, multiple timezones, quick presets.
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