Awesome Web Tools

A curated list of free, browser-based tools for developers, writers, students, and everyday tasks, no installs, no signups.

Every tool listed here runs entirely in the browser and is free to use. Contributions are welcome, see Contributing.

Contents

• Text Tools
• Developer Tools
• Math & Numbers
• Finance
• Health
• Education
• Design
• Image Tools
• Video Tools
• Generators

Text Tools

• Ambigram Generator - Converts text into Unicode characters that read the same rotated 180 degrees. No upload.
• Anagram Solver - Find every valid word from a set of letters, grouped by length, for Scrabble, Words with Friends, and word puzzles. No signup.
• Character Counter - Count characters with and without spaces in real time.
• Convert Case - Bulk-convert text between upper, lower, title, sentence and more cases.
• Diff Checker - Compare two blocks of text side by side and highlight added, removed and changed lines instantly, free with no signup.
• Diffchecker - Compare two texts and highlight the differences.
• Diffhero - Free, browser-based diff checker for text and code with syntax highlighting for ~17 languages, word-level diffing, and JSON-aware comparison. Nothing is uploaded.
• Find and Replace - Free find and replace text online with regex support, case sensitivity and whole word matching.
• Gothic Font Generator - Converts text into Fraktur-style Unicode characters; rendering depends on platform font support.
• Invisible Character - Copies invisible/zero-width Unicode characters for blank usernames and messages.
• Landing Page Clarity Checker - Check headline and CTA copy against seven transparent editorial signals.
• Letter Counter - Count letters and letter frequency in any text.
• Remove Duplicate Lines - Remove duplicate or blank lines from a block of text.
• Slug Generator - Create clean, SEO-friendly URL slugs from any text.
• Small Text Generator - Converts text into small caps, superscript, and subscript Unicode characters.
• Text Case Converter - Switch text between upper, lower, title, sentence and toggle case instantly.
• Text Repeater - Repeat any text or phrase a set number of times.
• Textbench - 64 free text tools in one page (case conversion, cleanup, encoding, hashing, generators) that run entirely in your browser. Nothing uploaded.
• Webdings Translator - Converts text to and from Webdings-style Unicode symbols in the browser.
• Word Cloud Generator - Create word clouds from any text with custom colors and max word count, download as PNG, runs entirely in your browser.
• Word Counter - Analyze text with word, character, sentence, paragraph, and reading-time counts.
• FontifyHub - Generate stylish and fancy Unicode text for social media, gaming names, profiles, usernames, and more.
• Bold Text Generator - Generate bold Unicode text for social media, profiles, messages, and websites.
• Cursive Text Generator - Convert ordinary text into stylish cursive Unicode text for social media, usernames, bios, and messages.
• Glitch Text Generator - Create glitch-style Unicode text for social profiles, gaming names, messages, and creative posts.
• Aesthetic Text Generator - Create aesthetic Unicode text styles for bios, usernames, social media posts, and profiles.

Developer Tools

• API Status Badges - Copy a live SVG status badge for any of 62 APIs into a README, refreshed every 5 minutes.
• Base64 Encoder / Decoder - Encode and decode text or files to and from Base64.
• Base64 Text Converter - Encode text or files to Base64 and decode Base64 strings, supports Unicode, no signup.
• crontab.guru - Understand and build cron schedule expressions.
• CSV Preflight - Check CSV structure and download normalized output locally in the browser.
• Developer Tools - 20+ browser-based dev tools: JSON/XML/YAML formatters, JWT decoder, diff, hash and more.
• Epoch Converter - Convert Unix timestamps to readable dates.
• Unix Timestamp Converter - Convert Unix timestamps to readable dates and times, and convert dates back to Unix timestamps.
• SQL Formatter - Format and beautify SQL queries with syntax highlighting for cleaner, more readable SQL.
• File Hash Checker - Compute SHA-256, SHA-512 and SHA-1 hashes for any file to verify downloads and check integrity, entirely in the browser.
• HTML to Markdown - Convert HTML to clean Markdown.
• JieBang Tools - 170+ free browser-based developer tools: JSON formatter, Base64/URL/HTML encoders, QR code generator, image converter, hash calculator, regex tester, JWT decoder, cron parser and more. No signup, all local processing.
• JSON Formatter - Format, validate, and beautify JSON with syntax highlighting.
• JSON Formatter & Minifier - Format, validate and minify JSON in the browser, no upload.
• JSONLint - Validate and format JSON with error reporting.
• JWT Decoder - Decode and inspect a JWT's header, payload and signature.
• JWT Generator - Generate signed JWTs for testing and development.
• jwt.io - Decode, verify and generate JSON Web Tokens.
• Markdown to HTML - Convert Markdown to clean HTML.
• Meta Tag Generator - Generate SEO and Open Graph meta tags for any page.
• Nginx Config Generator - Generate Nginx server blocks from domain, root, port and common options.
• Password Strength Checker - Check password strength with an entropy score, estimated crack time, and a 9-point security criteria breakdown, entirely client-side.
• Redirect Checker - Follow a shortened or redirecting URL through every hop, showing status codes, redirect type (301/302/307), and the final destination, server-side with no signup.
• regex101 - Build, test and debug regular expressions with explanations.
• Text Encrypt / Decrypt - Encrypt and decrypt text with AES-256-GCM entirely in the browser, password-protected, no upload, no signup.
• URL Encoder / Decoder - Encode and decode URL components and query strings.
• UUID Generator - Generate v4 UUIDs individually or in bulk.
• User Agent Parser - Decode any user agent string into browser, OS and device details, entirely client-side.

Math & Numbers

• Calculator.net - Huge free library of calculators for almost anything.
• Concrete Estimator Hub - Free concrete estimating calculators for slab volume, bag counts, post holes, ready-mix comparisons, and material cost planning.
• Date Calculator - Calculate the difference between two dates.
• Desmos - Free advanced online graphing calculator.
• Discount Calculator - Calculate discounts, sale prices and savings.
• Historical Length Converter - Convert historical units such as pied du roi, perches and cubits.
• Omni Calculator - Thousands of calculators across many topics.
• Percentage Calculator - Calculate percentages, percentage increase/decrease, and percentage differences instantly, free and no signup required.
• Percentage Decrease Calculator - Calculate the percentage decrease between two values.
• Percentage Increase Calculator - Calculate the percentage increase between two values.
• Scientific Calculator - Full scientific calculator with trig, logs and more.
• Statistics Calculator - Calculate mean, median, mode, standard deviation and quartiles from a list of numbers, free with no signup required.
• Time Calculator - Add, subtract and convert time durations.

Finance

• 401(k) Calculator - Project 401(k) balance at retirement with employer match and IRS limits.
• Bill Sahulat - Check and view utility bills online.
• Compound Interest Calculator - Project compound growth with regular contributions, free and no signup.
• Currency Converter - Convert between 25+ currencies with live exchange rates, no signup.
• Home Loan EMI Calculator - Calculate EMI and interest for a home loan.
• Invoice Generator - Create professional invoices with line items, download as PDF instantly. No signup required.
• Loan EMI Calculator - Calculate loan EMI, total interest and payment schedule.
• Loan / Mortgage Calculator - Estimate mortgage payments, interest and amortization.
• Personal Loan EMI Calculator - Calculate EMI and interest for a personal loan.
• SmartBizCalc - 300+ free business calculators covering payroll tax, break-even, self-employment tax, S-corp savings, startup costs, and contractor pricing. No signup.
• Tax Bracket Calculator - Find your federal tax bracket and effective tax rate instantly, no signup.
• Shift Roster & Pay Platform - 100% private in-browser shift planner and surcharge calculator that instantly predicts monthly net earnings with zero data uploads.

Health

• Blood Pressure Calculator - Check blood pressure category per 2017 AHA/ACC guidelines and calculate MAP and pulse pressure.
• BMI Calculator - Calculate body mass index instantly with metric or imperial units, no signup.
• BMR Calculator - Calculate Basal Metabolic Rate for daily energy use.
• Body Mass Index Calculator - Calculate Body Mass Index from height and weight.
• Calorie Calculator - Estimate daily calorie needs from your stats and activity.
• Noise Exposure Calculator - Calculate OSHA noise dose and 8-hour TWA for workplace hearing conservation compliance.
• Omni Calculator — Health - Free health and fitness calculators.
• Nutilz One Rep Max Calculator - Estimate your 1-rep max from any weight/rep set using the Epley, Brzycki, Lombardi and O'Connor formulas, plus a training percentage table, free with no signup.

Education

• Age Calculator - Calculate exact age in years, months and days.
• CGPA Calculator - Calculate cumulative GPA across multiple semesters.
• DailyToolkit GPA Calculator - Calculate semester GPA with weighted credit hours and letter or point grades.
• Nutilz Age Calculator - Find your exact age in years, months and days, plus a countdown to your next birthday, free with no signup.
• Nutilz GPA Calculator - Enter course grades and credit hours for an instant GPA, no signup.
• RapidTables - Reference tables, converters and calculators.
• Wolfram Alpha - Computational knowledge engine for math and science.

Design

• Color Converter - Convert colors between HEX, RGB, HSL and more.
• Color Hunt - Curated color palette inspiration.
• Color Palette Generator - Generate and export color palettes for your projects.
• Coolors - Generate, edit and explore color palettes fast.
• CSS Box Shadow Generator - Visually build CSS box-shadow values with live preview.
• CSS Filter Generator - Build CSS filter effects visually with live image preview across blur, brightness, contrast and more, copy production-ready CSS instantly, free with no signup.
• CSS Gradient - Create and customize CSS gradients visually.
• CSS Gradient Generator - Generate CSS for gradient-filled text.
• Haikei - Generate SVG backgrounds, blobs and waves.
• Nutilz Signature Maker - Draw or type a digital signature and download it as a PNG. No sign-up, no watermark, nothing stored.
• Realtime Colors - Preview color palettes on a live UI mockup.

Image Tools

• Blur Background - Automatically blur image backgrounds in the browser.
• Compress Image to 50KB - Compresses an image to a 50KB target size entirely in the browser, no upload.
• HEIC to JPG Converter - Convert HEIC images to JPG in the browser without signup.
• Image Compressor - Compress JPG, PNG and WebP images in the browser.
• Image Cropper - Crop images to custom sizes and aspect ratios.
• Image Resizer - Resize images to exact dimensions without uploads.
• JPG to PNG Converter - Convert JPG images to PNG in the browser.
• MarketPack - Resize product photos for marketplaces and download one ZIP locally.
• Metadata Remover - Inspect and remove file metadata locally in the browser without signup.
• Photopea - Free browser-based photo editor.
• PNG to JPG Converter - Convert PNG images to JPG in the browser.
• Quick Image Kit - Compress and resize images in the browser without signup.
• remove.bg - Remove image backgrounds automatically.
• SnapOG - Generate and download 1200x630 Open Graph images in the browser without signup.
• Squoosh - Compress and compare images in the browser.
• TinyPNG - Smart lossy compression for PNG and JPEG.
• ToolSuite Image Compressor - Compress and convert JPEG, PNG, and WebP images in your browser with no uploads.
• WebP Converter - Convert images to and from WebP.

Video Tools

• Video Size Reducer - Compress MP4 videos to a target size or quality preset in the browser, no upload.

Generators

• Barcode Generator - Create CODE128, EAN-13, EAN-8, UPC and CODE39 barcodes with auto check digits, free and no signup.
• Bitwarden Password Generator - Generate strong passwords and passphrases.
• Coded Message Generator - Create an encoded message together with its explained solution.
• Nutilz CSS Grid Generator - Visually build CSS grid layouts and copy the generated code. Free, no signup required.
• Favicon.io - Generate favicons from text, images or emoji.
• Hashtag Generator - Generate relevant hashtags for social posts.
• Lorem Ipsum Generator - Generate placeholder lorem ipsum text.
• Nutilz Favicon Generator - Generate 16x16, 32x32, 48x48, and 192x192 favicon PNGs from any image, entirely in-browser.
• Password Generator - Generate strong, customizable random passwords.
• PUBG Name Style - Generate stylish and unique PUBG names using fancy text, symbols, and Unicode characters.
• Free Fire Name Style - Create stylish Free Fire names using fancy fonts, symbols, and Unicode characters.
• Stylish Name Generator - Generate stylish usernames and nicknames using Unicode text styles and symbols.
• Instagram Font Generator - Create stylish Unicode fonts for Instagram bios, captions, usernames, and profiles.
• TikTok Font Generator - Generate copy-and-paste stylish fonts for TikTok bios, usernames, captions, and profiles.
• Discord Font Generator - Create stylish Unicode text for Discord usernames, profiles, messages, and servers.
• QR Code Generator - Create QR codes for URLs, text and more.
• QR Code Monkey - Create custom QR codes with logos and colors.
• README Generator - Build a project README from a guided form.
• readme.so - Build a project README with a visual editor.
• RealFaviconGenerator - Generate favicons for all platforms and devices.
• WizGenerator Story Generator - Create customizable stories from genre, tone, characters and plot details.
• Vedic Astrology Chart - Generate a Vedic birth chart from date, time and place.

Contributing

Contributions are welcome. Please read CONTRIBUTING.md before submitting a pull request.

License

This list is released under CC0 1.0 Universal (Public Domain).

To the extent possible under law, all copyright and related rights have been waived. You may copy, modify, distribute, or use this list — even commercially — without asking permission.