Explore a free tools directory by keyword and category. Use the search box, filter results, and open any tool card instantly.
All Tools is a curated directory of free online utilities built to help you finish common tasks quickly. Instead of jumping across multiple pages, you can search by keyword or use the filter tabs to quickly narrow down what you need. Most tools run directly in your browser, so you can focus on your input and get results with less friction—on desktop or mobile.
To find something fast, type in the search box. Search matches tool names, descriptions, and category names. Then use the category tabs to jump between major groups like Developer, Text, Calculators, and more.
Below, tools are organized into readable category sections. Each section shows a limited set of tools first, so the page doesn't feel overwhelming. Common categories include Text Tools (word counting, passwords, text cleanup), Developer Tools (regex testing, JSON validation, formatting), Design & UI Tools (CSS, contrast, gradients), and 3D Tools. You'll also find practical calculators.
When you see a tool you want, click the card to open it. If a category has more tools than the preview, use the View all button to expand that category. Use Show fewer to return to the curated preview. This keeps the directory focused, while still giving you quick access to everything when you need it.
Browse tools by category or click View all to explore more tools.
Browse categories using the tabs, then use the search box and filters to narrow results. When you find a tool, click its card to open it instantly and get started.
View and inspect 3D files in your browser (STL, GLTF/GLB, and more). Rotate models and export screenshots for sharing or presentations.
Quick preview for shape validation and visual checks. Helps you decide faster without heavy desktop software.
Open a 360 photo in your browser and drag to look around. Zoom and fullscreen. Your file stays on this device — nothing is uploaded. Free, no account.
Use tool →Convert a GLB, STL, or OBJ to PNG or JPG in your browser. Transparent PNG and square thumbnails. The file never leaves this device.
Use tool →Open GLB, GLTF, STL, or OBJ in your browser. Orbit, wireframe, lighting, and mesh stats. Free — no install, no signup. The file never leaves this device.
Use tool →Free browser-based GLSL shader editor — write fragment and vertex shaders with real-time WebGL rendering. Includes u_time, u_resolution, and u_mouse uniforms for animated and interactive effects. Syntax highlighting, error console, and built-in examples. No install required. Runs locally in your browser when supported—no upload required for normal use.
Use tool →Fast calculators for everyday decisions: BMI, calories, budgets, percentages, discounts, and more. Enter inputs and get results quickly.
Reduce guesswork for studying, planning, and personal goals. Copy the output and move forward with confidence.
Enter two birthdays to see who is older and the exact age gap in years, months, and days—plus how many days apart. Free, private, no signup.
Use tool →Paste numbers (commas, spaces, or new lines) and get the arithmetic mean instantly—plus sum, count, min, max, and range, with calculation steps. Free, private, no signup.
Use tool →Estimate your biweekly paycheck from salary or hourly pay. See gross, 2026 federal/FICA take-home, overtime, and 26 vs 24 pay periods. Free, private, no signup.
Use tool →Free adult BMI from height and weight (lb/ft/in or kg/cm). CDC category, healthy weight range, optional waist. Screening only—runs in your browser.
Use tool →Estimate body fat % with the US Navy tape method. Height, waist, neck, and hip (women). Fat mass and lean mass. Free, private, US + metric.
Use tool →Calculate dates and times quickly: add/subtract days, compute age, convert time zones, and estimate time differences. Helps with scheduling and planning.
Browser-based tools give fast results with no setup. Enter your inputs and copy the answer immediately.
How old am I? Exact age in years, months, and days from date of birth—plus age as of any date, days lived, and next birthday. Free, private, no signup.
Use tool →Enter your birth date to see your age on Mars, Mercury, Jupiter, and every planet—plus Earth days lived and your next planetary birthday. Free, private.
Use tool →Add or subtract days, weeks, months, or years from any date. Days-between mode included. No upload—runs locally in your browser. Free, no signup.
Use tool →Track employee work hours, unpaid breaks, overtime, and weekly timesheets for multiple employees. Optional pay estimates. Runs in your browser—no signup.
Use tool →Calculate freelance hours, billable time, and earnings from your hourly rate. Track breaks and multiple sessions in the browser — no signup.
Use tool →Create UI-ready values for design systems: colors, gradients, spacing, shadows, borders, typography scales, and more. Preview and copy CSS output directly.
Speed up iteration for landing pages and components. Great for matching styles and finding accessible contrast quickly.
Create CSS border-radius with a live preview. Adjust every corner, make pills, circles, and blobs, then copy CSS or Tailwind. Free in your browser.
Use tool →Create CSS box shadows with a live preview. Adjust offset, blur, spread, color and opacity, stack layers, then copy CSS or Tailwind. Free in your browser.
Use tool →Create CSS clip-path shapes visually with draggable polygon points, circle, ellipse, and inset controls, live preview, and copy-ready CSS, Tailwind, or React. Browser-only — local images are not uploaded.
Use tool →Check foreground and background colors against WCAG 2.2 AA and AAA, including UI/non-text 3:1, alpha compositing, and accessible color fixes in your browser.
Use tool →Generate random, complementary, analogous, triadic, or image-based color palettes and copy HEX, RGB, HSL, CSS, or Tailwind in your browser.
Use tool →Developer utilities for everyday engineering: test regular expressions, validate and format JSON, parse URLs and user agents, and generate UUIDs, hashes, QR codes, API keys, HTTP/CORS headers, and more.
Turn messy input into clear output in seconds. Simple copy-ready results help you iterate without setup or extra tooling.
Free .env file parser — paste any .env file and extract all environment variables as structured JSON or YAML. Useful for config migration and debugging. No signup needed. Runs locally in your browser when supported—no upload required for normal use.
Use tool →Generate a secure random API key or webhook secret in your browser. Hex, Base64url, or alphanumeric. Keys stay local—not a Stripe or OpenAI credential.
Use tool →Design a mock REST response in your browser—JSON body, status, headers, and delay. Copy Express or MSW snippets. Free, no signup. Does not host a live API URL.
Use tool →Free number base converter: binary, decimal, octal, hex, and custom bases 2–36. Live convert with BigInt for large integers. Browser-local, no signup.
Use tool →Encode text to Base64 or decode a Base64 string online. UTF-8 safe, with URL-safe Base64. Runs in your browser—no upload, no signup.
Use tool →Handle text fast: count words and characters, generate passwords, clean formatting, and convert with Base64 encoding/decoding and case tools.
Use comparison and frequency utilities to spot differences and improve content readability. Everything runs in-browser for quick results.
Generate bold Unicode text and copy it into Instagram, LinkedIn, Discord, and other plain-text fields. Free in your browser—not a font file.
Use tool →Count characters with and without spaces as you type. Optional limit, remaining characters, and UTF-8 bytes. Runs in your browser — text is not uploaded.
Use tool →Free Lorem Ipsum generator — create placeholder text by paragraphs, word count, or byte length for wireframes, mockups, and UI design. Classic or custom Lorem Ipsum. No signup. Runs locally in your browser when supported—no upload required for normal use.
Use tool →Free online notepad — write notes in your browser with autosave, multiple notes, find & replace, and TXT/Markdown/HTML export. No signup. Notes stay on this device.
Use tool →Free password generator — create strong random passwords with custom length and character sets: uppercase, lowercase, numbers, and symbols. Copy instantly. Fully browser-based. Runs locally in your browser when supported—no upload required for normal use.
Use tool →Browser-first tools that are free, fast, and simple to use.