50 free tools, all built with GenMB

Generate QR codes for URLs, text, contact cards, and Wi-Fi. Sign in to save your codes and revisit them anytime.

Convert JSON to YAML and YAML to JSON instantly. Validates input, formatted output, copy with one click.

Convert JSON arrays to CSV and CSV to JSON. Auto-detects headers, supports nested fields, copy or download.

Convert Markdown to clean HTML in real time, with GitHub-flavored Markdown and saved documents when you sign in.

Encode and decode Base64 strings. Supports text and files. Free, no signup, runs in your browser.

Encode and decode URL-encoded strings instantly. Components and full URLs. Free, no signup.

Convert colors between HEX, RGB, HSL, and OKLCH with live WCAG contrast scoring. Save your library when signed in.

Convert between length, weight, temperature, volume, area, and speed units. Fast, no signup.

Convert times between time zones. Build a personal team-roster of zones that follow you everywhere.

Resize, compress, convert, and AI-remove backgrounds from images. Save originals to your library when signed in.

Generate cryptographically random passwords. Customize length and character classes. Runs in your browser, never sent.

Generate Lorem Ipsum or AI-written placeholder text in any tone or topic. Save snippets when signed in.

Generate UUIDs (v4 random and v7 time-ordered). Bulk generation, copy or download as a list.

Generate realistic fake names, emails, addresses, and phone numbers for testing. Save schemas to reuse anywhere.

Design CSS gradients visually with linear, radial, and conic. Save your library and copy ready-to-use CSS.

Generate favicons from text, emoji, an uploaded image, or an AI prompt. Get all sizes plus the HTML to drop in.

Generate Open Graph, Twitter, and SEO meta tags. Use AI to auto-write titles and descriptions from a URL or topic.

Test regex patterns, describe a pattern in plain English, and search a library of known patterns by intent.

Convert any text into a clean URL slug. Handles unicode, separators, and case in real time.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files. Runs in your browser.

Calculate tip and split a bill across people. Save bill history when signed in.

Calculate mortgage payments using live US/UK average rates. Save scenarios and compare amortization schedules.

Calculate exact age in years, months, days, hours, and minutes from any date of birth.

Calculate body mass index. Metric and imperial units, with a clear category indicator.

Calculate percentages, percent change, percent of, and what percent something is. Fast, ad-free.

Calculate the difference between two dates in years, months, weeks, days, hours, and business days.

Calculate your GPA on the 4.0 scale across multiple semesters. Save your progress when signed in.

Calculate the hourly rate you should charge to hit your target take-home income. Save profiles when signed in.

Calculate how much you need to save monthly to reach a goal by a target date. Track multiple goals when signed in.

See how money grows with compound interest. Tweak rate, contributions, and time to see the impact.

Count words, characters, sentences, paragraphs, and reading time. Save documents when signed in.

Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more.

Compare two texts side-by-side with line and word diff. Save comparisons to revisit later.

Format, validate, and minify JSON with line-precise errors and a tree view. Save scratchpads when signed in.

Format and beautify SQL queries. Multiple dialects, configurable indent, copy or download output.

Paste HTML and get clean Markdown. Preserves headings, links, lists, code, and tables.

Find and replace across large blocks of text with regex, case-insensitive, and live match counts.

Sort lines alphabetically, by length, or numerically. Remove duplicates and blank lines instantly.

Hear any text read aloud with natural voices, then practice pronunciation with a real-time voice coach.

Generate themed placeholder text: pirate, corporate, cupcake, hipster, dev, and classic Lorem.

Generate beautiful color palettes by random, harmony, or AI prompt. Save your library, export as CSS or Tailwind.

Design CSS box-shadows visually with multiple layers. Save your library and copy production-ready CSS.

Build fluid responsive typography and spacing with clamp(). Min, max, and viewport ranges, copy CSS.

Test how a site looks at different viewport sizes. Save device presets when signed in.

Wrap a screenshot in a phone, tablet, or laptop frame. Save mockups and download a PNG ready for marketing.

Search emojis by meaning using semantic vector search. 'Face expressing joy' returns the right emoji.

Convert text into ASCII art using FIGlet fonts. Pick a font, copy the result, paste it anywhere.

Clean and optimize SVG files. Strip metadata, simplify paths, see the size savings.

A clean searchable regex cheatsheet. Examples, flags, common patterns, and a live tester.

Compare two JSON objects. Tree view of additions, removals, and modifications. Save comparisons.