Developer tools that work.
194 free utilities for code formatting, file conversion, calculations, AI assistance, and more. No signup, no upload, no tracking.
Popular Tools
8 most-usedFree AI Chat - No Login, No Signup
Free AI chat powered by Llama 3.3 70B. No login, no signup, no tracking. Coding, writing, math, brainstorming. Conversations stay in your browser.
NewFree Online Calculator - Math Problem Solver
Free online calculator with scientific functions, unit conversion, loan calculator, and BMI calculator. No signup required, works in any browser.
Calorie Calculator - Free TDEE BMR & Macro Calculator
Free calorie calculator. Calculate your TDEE, BMR, and optimal macros for weight loss, maintenance, or muscle gain. Mifflin-St Jeor equation, no signup, 100% private. AI cannot compute accurate metabolic formulas.
NewFree Email Signature Generator - Outlook Gmail HTML
Pro email signature generator. 10 table-based templates, MSO compatible, base64 photo embedding, click-to-call phones, social icons. Outlook + Gmail + Apple Mail ready. No signup, no tracking, 100% private browser tool. AI cannot produce email-client-compatible HTML.
NewImage Compressor - Reduce Image File Size Online Free
Free online image compressor. Reduce image file size without losing quality. Supports JPG, PNG, WebP. No upload, privacy-first processing.
Image Cropper - Crop Photos Free Online with Aspect Ratio Presets
Free online image cropper. Crop photos with aspect ratio presets, rotate, flip, zoom. Social media sizes for Instagram, Facebook, Twitter. No upload, 100% private browser processing. AI cannot crop your photos - we do.
NewJSON Formatter - Format & Validate JSON
Free JSON formatter. Format, minify, beautify JSON and convert to YAML with syntax error detection.
JSON to CSV Converter - Bidirectional Online Data Converter
Free JSON to CSV converter and CSV to JSON online. Flatten nested objects, auto-detect input, table preview, export file. 100% private browser processing. AI cannot convert data reliably - we do.
NewRecently Updated
2 toolsAudio Cutter & Trimmer
Free online audio cutter and trimmer. Cut and trim MP3, WAV, M4A, FLAC, OGG with waveform precision. No upload, 100% private.
Grade Calculator - Weighted Average, Final Exam & GPA
Free grade calculator. Calculate weighted average grades, what you need on the final exam, and GPA. No signup, 100% private browser tool. AI gets grade math wrong - we don't.
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11 categoriesView all 194 tools (alphabetical)
Age Calculator - Years, Months, Days & Birthday
Free age calculator. Calculate your exact age in years, months, days, hours. See next birthday countdown and milestone dates. No signup required.
AI Image Generator - Free Unlimited DALL-E 3 Flux Stable Diffusion
Free AI image generator. Create unlimited images with DALL-E 3, Flux, Stable Diffusion. No signup, no watermark, no daily limit. 100% private browser processing.
NewAI Story Animator - Novel to Video with Agnes AI
Free AI story animator. Input a novel chapter, get a full storyboard with images, videos, and narration. Powered by Agnes AI multi-modal API. Video generation rate-limited to 1/min.
NewAspect Ratio Calculator - Free Online Tool
Free aspect ratio calculator. Calculate aspect ratio from width and height, find missing dimensions, visual preview of 16:9, 4:3, 21:9 ratios. Social media presets for YouTube, Instagram, TikTok, Twitter. 100% private.
NewAstronomy Calendar - Moon Phases & Meteor Showers
Free astronomy calendar with daily moon phases, sun rise/set, upcoming meteor showers, eclipses, and planetary events. Pure browser-based calculations.
NewAudio Cutter & Trimmer
Free online audio cutter and trimmer. Cut and trim MP3, WAV, M4A, FLAC, OGG with waveform precision. No upload, 100% private.
Audio Joiner & MP3 Merger - Merge Audio Files Free
Free online audio joiner. Merge MP3, WAV, M4A, FLAC, OGG into one with drag-to-reorder, crossfade or silence gap modes. 100% private browser processing, no upload, no signup. AI cannot merge audio - we do.
NewAudio to Text Converter - Free Online Speech to Text
Free online audio to text converter. Convert speech to text in real-time with browser-based voice recognition. No uploads, no sign-up, 100% private.
Background Remover - Remove Image Background Free Online
Free online background remover tool. Remove image backgrounds automatically. No signup. Works with JPG, PNG, WebP. Fast and private.
Base64 Encoder/Decoder - Encode Data
Free Base64 encoder and decoder. Encode text to Base64 and decode back. Works in your browser.
Base64 to Image Converter - Convert Base64 String to Image
Convert base64 strings and data URIs to viewable images. Supports PNG, JPG, WebP, GIF, BMP. 100% private, browser-based, no upload required.
NewBingo Card Generator - Free Printable
Free printable bingo card generator. 1-75, 1-90, or custom themed. 100% free, no signup, no watermark, no upload. AI cannot generate cards - we do.
NewCalorie Calculator - Free TDEE BMR & Macro Calculator
Free calorie calculator. Calculate your TDEE, BMR, and optimal macros for weight loss, maintenance, or muscle gain. Mifflin-St Jeor equation, no signup, 100% private. AI cannot compute accurate metabolic formulas.
NewChess Move Validator - Free Legal Move Checker Online
Free chess move validator. Play chess on an interactive board with real-time legal move validation. No signup. Perfect for learning chess rules.
NewCode Minifier & Beautifier - JS, CSS, HTML
Free online code minifier and beautifier. Minify JS, CSS, HTML for production or beautify for debugging. Size stats, copy, all in browser. No signup.
NewCode to Image Converter - Create Beautiful Code Screenshots
Convert your source code into stunning syntax-highlighted PNG images. 7 themes, customizable padding & fonts, window frame, transparent background. 100% private, no upload.
NewColor Contrast Checker - WCAG AA AAA Accessibility Checker
Free WCAG color contrast checker. Check AA and AAA accessibility for text and background colors. Real-time ratio, live preview, pass/fail results. No signup.
NewColor Palette Generator - Create Harmonious Color Schemes
Free color palette generator. Create harmonious schemes with 7 harmony rules. Export as CSS, Tailwind, SCSS, JSON. Lock colors, WCAG checker. No signup.
NewColor Picker - HEX RGB HSL Converter
Pick colors and convert between HEX, RGB, and HSL formats with live preview and copy buttons.
Compound Interest Calculator - Free Investment Growth Tool
Free compound interest calculator. Calculate investment growth with monthly contributions, compounding frequency, and year-by-year breakdown. No signup, 100% private browser tool. AI cannot compute compound interest accurately - we do.
NewConnections Game - Free Word Puzzle Online
Play Connections word puzzle free. Group 16 words into 4 hidden categories. Unlimited puzzles, 4 difficulty levels, hints, timer. No signup, no ads, 100% free.
NewCORS Header Generator - Access-Control-Allow-Origin Headers
Free CORS header generator. Configure allowed origins, methods, headers, credentials. Generate Nginx, Apache, Express, Flask, Cloudflare Workers snippets. Preflight simulation. AI gets CORS wrong - we don't.
NewCron Generator - Create Cron Expressions
Generate cron expressions interactively. Select minute, hour, day, month, weekday. See next execution times.
Cryptocurrency Price Tracker - Live Crypto Prices & Charts
Free crypto price tracker. Live prices for 17,000+ coins. AI cannot show real-time crypto prices.
CSS Animation Generator - Keyframe Animations with Live Preview
Free CSS animation generator with 15 presets, custom keyframes, and live preview. Create @keyframes animations visually. Copy CSS. No signup, 100% browser-based. AI cannot show animations - we can.
NewCSS Box Shadow Generator - Live Preview & Depth Presets
Free CSS box shadow generator. Multi-layer shadows, depth presets, inset toggle, live preview. Copy production-ready CSS. No signup, 100% browser-based.
NewCSS Flexbox Generator - Visual Flex Layout Builder with Live Preview
Free CSS flexbox generator with interactive visual builder. Tune direction, wrap, justify-content, align-items, gap, and per-item flex (grow/shrink/basis/order/align-self). 7 presets. Copy CSS/HTML. No signup, 100% browser-based. AI cannot show you interactive flexbox layouts - we do.
NewCSS Formatter & Validator - Beautify & Minify CSS Online
Free online CSS formatter and validator. Beautify messy CSS, minify for production, fix syntax errors. Instant results, no signup required.
CSS Gradient Generator - Linear, Radial & Conic Gradients
Free CSS gradient generator. Create beautiful linear, radial, and conic CSS gradients with live preview, angle dial, and multiple color stops. Copy CSS code or export SVG. No signup, 100% free.
NewCSS Grid Generator - Visual Grid Layout Builder with Live Preview
Free CSS grid generator with interactive visual builder. Define columns, rows, gaps, and alignment. Preset layouts like Holy Grail, Photo Gallery, Dashboard. Copy CSS/HTML. No signup, 100% browser-based. AI cannot show you interactive grid layouts - we do.
NewCSS to Tailwind Converter - Free Online CSS to Utility Classes
Free CSS to Tailwind converter. Convert any CSS properties to Tailwind utility classes instantly. Supports 100+ properties including layout, flexbox, grid, typography, colors, borders. No signup, 100% private browser processing.
NewDate Calculator - Days Between & Date Arithmetic
Free online date calculator. Calculate days between dates, add subtract days/weeks/months/years, count business days. 100% private browser processing. AI hallucinates date math - we deliver deterministic results.
NewDays Until Calculator - Countdown to Any Date
Free days until calculator. Countdown to any date: Christmas, birthday, holiday, or event. See how many days, hours, minutes left. No signup required.
DNS & WHOIS Lookup - Check Domain Records
Free DNS lookup and WHOIS checker. Query DNS records (A, AAAA, MX, NS, SOA, TXT) and domain registration info instantly. No signup required.
Domain Age Checker - Free WHOIS Domain Age Lookup
Free domain age checker. Check how old any domain is with instant WHOIS lookup. See creation date, age in years/months/days, expiry date, registrar, and nameservers. No signup. AI cannot check real WHOIS records - we do.
NewDrawing Board - Free Online Whiteboard & Sketch Pad
Free online drawing board. Sketch, draw shapes, add text, save as PNG. No signup, no upload, 100% private browser canvas tool. AI cannot draw - you do it yourself.
NewEmail Authentication Checker - SPF DKIM DMARC Check
Free email authentication checker. Check SPF, DKIM, and DMARC records for any domain. Fix email deliverability. AI cannot check real DNS records - we do.
NewEmail Verifier - Verify Email Addresses Instantly
Free email verifier. Check if email addresses are valid and can receive messages. Detect disposable emails and SMTP issues. No signup required.
Excel to PDF Converter - Free Online XLSX to PDF
Free online Excel to PDF converter. Convert XLSX and XLS to PDF in your browser. Multi-sheet support. 100% private, no upload, no signup, unlimited conversions. AI cannot convert binary Excel files - we do.
NewExcel Viewer & Converter - Free Online XLSX Viewer
Free online Excel viewer and converter. View XLSX, XLS, CSV files without Excel. Convert to JSON or CSV. 100% private, no upload, no signup.
NewEXIF Viewer - Read Photo Metadata & Remove GPS Location Free
Free online EXIF viewer. Read hidden photo metadata - GPS location, camera settings, date taken. Remove EXIF/GPS before sharing. 100% private, no upload, no signup. AI cannot read binary EXIF data - we do.
NewFace Age Estimator - How Old Do I Look? Free AI Age Detector
Free AI face age estimator. Detect how old you look in any photo or via live camera. 100% private browser processing, no upload, no signup. Multi-face, expressions & gender. AI cannot analyze real faces - we do.
NewFancy Text Generator - Cool Unicode Fonts and Stylish Text
Free fancy text generator. Convert plain text into 30+ cool Unicode font styles. Bold, italic, script, gothic, circled. No signup, 100% private.
NewFavicon Generator - Free ICO, PNG Favicon Creator Online
Free favicon generator. Create favicons from text, emoji, image upload, or solid color. Export ICO + all PNG sizes in one ZIP. Live preview, 100% browser-based. AI cannot generate .ico binary files - we do.
NewFile Opener - Open APK, RAR, DLL, DAT, BIN Online
Free online file opener. Detect, view, and extract 50+ file types (APK, RAR, ZIP, DLL, DAT, BIN, DOCX) using magic numbers. Browser-only, no upload, 100% private. AI cannot parse real binary files - we do.
NewFree AI Chat - No Login, No Signup
Free AI chat powered by Llama 3.3 70B. No login, no signup, no tracking. Coding, writing, math, brainstorming. Conversations stay in your browser.
NewFree AI Detector - Check If Text Is AI Generated
Free AI content detector using multi-model voting (Groq, Gemini, NVIDIA). Detect ChatGPT, Claude, Gemini text with sentence highlighting. No signup.
NewFree AI Humanizer - Make AI Text Undetectable
Free AI humanizer with 5-stage DeAI pipeline. Bypass GPTZero, Turnitin, Copyleaks. No signup, no word limit, no paywall. Real MAGE, Burstiness, and brandonwise detector scores shown. Self-hosted.
NewFree AI Paraphrasing Tool - Rewrite Text Online
Free AI paraphrasing tool that rewrites text while preserving meaning. 8 modes including humanizer makes AI text sound natural. No signup, no limits.
Free AI Plagiarism Checker - AI-Powered Content Originality Test
Free AI plagiarism checker that searches the web for duplicate content. Get similarity percentage, source URLs, and suggestions. No signup required.