Awesome No-Signup Tools

A curated list of free, online tools that work with zero signup and zero registration — many of them fully client-side. No account required; note that some tools may still run ads or analytics.

No accounts. No email walls. No "sign up to continue". Just tools you can use right now.

On the website, each tool is tagged LOCAL if its description says your data stays in the browser, or UPLINK if it doesn't say so (your data may be sent to a server). The tags come from the tools' own descriptions and aren't independently verified. Every tool is reviewed against the contributing rules before it's added, and listed tools get random spot checks; a tool that no longer follows them is removed.

Know a tool that fits? See the contributing guidelines (linked in the badge above) and open a PR.

Contents

• Utilities
• DevTools
• Design
• Productivity
• Privacy
• Converters
• Text & Writing

Utilities

• Audio Cutter Online - Cuts, trims, joins, and fades audio files and exports MP3, WAV, FLAC, OGG, M4A, and AIFF, no signup, runs entirely client-side in the browser.
• FreeToolHub - Collection of 190+ free calculators and file utilities covering tax, finance, PDF and image work, no signup, runs client-side in the browser.
• BuildEstimate - Construction material calculators (concrete, brick, paint, tile, gravel) with bag counts and waste allowance in metric and imperial, no signup, calculations run client-side.
• Stock Average Calculator - Share cost basis, averaging down, dividend, profit and CAGR calculators, no signup, calculations run client-side in the browser.
• Utilia - Spanish collection of free browser tools for calculators, QR codes, text, conversions, images, and classroom tasks; no account required.
• kdpbook.io Word Search Maker - Makes a printable word search from your own words or a theme, 8×8 to 22×22 grid, with the answer key on its own page, no signup, runs client-side in the browser.
• TestPageForPrinter - Printable printer test pages as PDFs in Letter and A4 plus a print scale check, no signup, the scale calculation runs client-side in the browser.
• Chempirical - Free chemistry tools for structure drawing, spectra viewing, stoichiometry and pH, no signup.
• DeclaRenta - Turns reports from foreign brokers such as Interactive Brokers and Degiro into the figures for Spanish tax forms (Modelo 100, 720 and 721), no signup, calculations run client-side in the browser.
• BJJGraph - Free Brazilian jiu-jitsu study tool with an interactive position graph, flashcards, and simulated rolls, no signup.
• Spoolyard - Draws piping isometrics and spool fabrication drawings with cut lengths, weld maps and bills of materials from ASME B16 dimension tables, no signup, runs client-side in the browser.

DevTools

• Diffchecker - Compare text, files, images, or JSON side-by-side; no signup required for standard diffs.
• Regex101 - Regex tester and debugger with real-time explanation, no signup, runs matching client-side in the browser.
• JSFiddle - Online HTML/CSS/JS code editor and playground, no signup required to create and run a fiddle.
• JSONLint - Validates and reformats JSON, no signup required.
• Can I Use - Browser support tables for HTML5, CSS3, and other web technologies, no signup required.
• TryDevSnip - JSON formatter, cron helper, timestamps, JWT, and hash tools that run in the browser with no signup; processing stays client-side.
• QuickTiny - Detects pasted JSON, Base64, encoded URLs, timestamps, or lists and routes to the matching tool among 13 free browser utilities, no signup; processing runs client-side.
• DeployPost - Checks a public website for search metadata, shared-link previews, and email DNS records without an account.
• FaviconDL - Downloads the favicon an existing website already uses, at 16-256px as PNG or ICO (SVG when the site provides one), plus a free JSON API that needs no key, no signup.
• CurlShot - Takes a screenshot of a web page from its address, whole page or just the top, and downloads it as PNG, JPEG, WebP or PDF, no signup; free limits without an account: 5 captures a minute and a daily cap per visitor, full pages up to 6,000 px tall; the page is rendered on CurlShot's server.

Design

• Photopea - Photoshop-like image editor that opens PSD, XD, and Sketch files directly in the browser, no signup, files processed client-side.
• Excalidraw - Free virtual whiteboard for sketches and diagrams, no signup, open-source, runs entirely client-side.
• Coolors - Color palette generator, no signup required to generate and explore palettes (saving palettes requires an account).
• Google Fonts - Browse and download open-source fonts, no signup required.
• Unsplash - Browse and download free high-resolution stock photos, no signup required.
• AI Coloring Page Generator - Converts a photo into black-and-white line art and exports it as a printable A4 or US Letter page at 300 DPI, with all processing done client-side.
• Background Remover - Free browser tool to remove image backgrounds with no signup; processing runs locally in the browser.
• Engineering on Web CAD - Parametric 3D CAD in the browser with constrained sketches, parts, assemblies and technical drawings, exports STL, STEP, IGES and DXF, no signup.
• PNG to SVG - Converts PNG, JPG, or WebP images up to 20 MB to full-color SVG with Detailed, Balanced, Simple, and Black & white styles and transparency kept, free with no signup, with tracing done in the browser (an optional AI mode requires an account).
• Cicada - Draws and edits 2D CAD drawings in the browser, imports DXF and exports DXF and SVG, no signup, files are not uploaded.

Productivity

• Pomofocus - Customizable Pomodoro timer with task tracking, no signup required to start a session.
• World Time Buddy - Time zone converter and meeting planner, no signup required to use (sign-in is optional, only needed to save settings).
• Desmos - Free scientific and graphing calculator, no signup required.
• MindMup - Browser-based mind mapping tool, no signup required to create a map.
• Privnote - Creates a self-destructing note that deletes itself after being read once, no signup required.
• TryCalculatingNow - GPA, final grade, percentage, and compound-interest calculators with no signup.
• Corbelworks - Free calculators for contractors and small businesses covering break-even billable rate, change-order cost, service-call minimums, late-invoice carrying cost, and bid go/no-go, no signup, runs client-side in the browser.
• Naratake Free Business Tools - 35 tools for small businesses covering QR codes, printable signs, menus, and pricing calculators, no signup, runs client-side in the browser.
• Drag Task - Calendar-shaped to-do list for adding tasks to days and dragging them to reschedule; the no-signup demo stores data only in the open tab.
• OutilCalcul - Free instant calculators for everyday needs (salary, dates, geometry, unit conversions, French labor-law calculations), no signup required.
• Aulify Gerador de Horários - School timetable builder with a Portuguese interface that handles teacher availability, specialised rooms and continuous blocks and flags conflicts, no signup, data is kept in the browser's local storage.
• Tanzhang - Free calculator for one market event’s operating surplus from net receipts, sold-product costs, losses and expenses, no signup; CNY only, with no tax calculation or dedicated export.
• Drible Sign PDF - Adds a drawn, typed or uploaded signature, dates and text to a PDF and downloads a signed copy of the same document, no signup, runs client-side in the browser.

Privacy

• SSL Server Test - Deep analysis of a domain's SSL/TLS configuration by Qualys, no signup required.
• VirusTotal - Scans a file or URL against dozens of antivirus engines, no signup required for a basic scan.
• Cover Your Tracks - Tests how well your browser is protected from tracking and fingerprinting, no signup, a project of the EFF.
• Metadata Remover - Inspects and removes supported file metadata locally in the browser, no signup required.

Converters

• TinyPNG - Compresses PNG, JPEG, and WebP images, no signup required (free tier: up to 20 images per batch, 5MB each).
• CloudConvert - Converts between 200+ document, image, audio, video, and archive formats, no signup required (free tier: 25 conversion minutes per day).
• PDF24 Tools - Merges, splits, compresses, and converts PDFs, no signup required (files are processed on PDF24's servers and deleted shortly after).
• TryQuickImg - HEIC to JPG, compress to a KB target, resize, crop, and QR tools with no signup; image processing runs client-side in the browser.
• AVIF to JPG Converter - Converts AVIF images to JPG in bulk with a quality slider, background fill for transparency, and Retina scaling, no signup, runs entirely client-side in the browser.
• Image to ASCII - Converts images to ASCII art with adjustable styles and TXT, PNG, or SVG export, no signup, with image processing in the browser.
• FileOnTap - Free image and PDF converter with no signup; files are processed locally in the browser and are not uploaded.
• Merge PDF - Combines PDFs into one file in the browser, no signup, the merge runs client-side and files are not uploaded (free tier: up to 3 files and 10MB total).
• SnappyKit - Converts, compresses, resizes and crops images, and strips EXIF metadata, with no signup; processing runs client-side in the browser.
• PageFold - Merges, splits, reorders, rotates, compresses, page-numbers and watermarks PDFs with no signup; files are processed client-side in the browser and are not uploaded.
• EML to PDF - Opens .eml and .msg email files and saves each one as a PDF, no signup, files are read client-side and not uploaded, and images from the internet are not loaded unless you choose to (free tier: one PDF per email, no limit; a ZIP of all PDFs and one merged PDF are paid).
• PKPASS Viewer - Opens Apple Wallet .pkpass files in any browser, including on Android and Windows, and shows the pass and its barcode, no signup, the file is read client-side and not uploaded (free: viewing and PNG export; print-ready PDF export is paid).

Text & Writing

• LanguageTool - Grammar, spelling, and style checker supporting 30+ languages, no signup required for the free version.
• DeepL Translate - Machine translation across 30+ languages, no signup required for the web translator.
• Google Translate - Machine translation across 100+ languages, no signup required.
• Duplicate Line Remover - Removes duplicate lines from text, lists, or logs with options for case sensitivity, whitespace trimming, and sorting, no signup, runs entirely client-side in the browser.
• Need Go Home - Generates short, professional messages for telling your manager you need to leave work early, across a range of situations and languages, no signup, runs client-side in the browser.
• CharCount - Free character, word, and text counter with support for 11 languages, no signup, client-side processing.
• Word Counter Suite - Free word counter and text analysis toolkit with 15+ tools including character counter, case converter, and reading time calculator, no signup required.
• Compare Two Lists - Compares pasted lists and TXT, CSV or XLSX single-column data to find shared values, one-sided differences and duplicates, with exports, no signup, list processing runs client-side.

Contributing

Tools that don't meet our criteria are tracked in no-go-list.md. See the contributing guidelines linked above for how to add a tool.

To the extent possible under law, the contributors have waived all copyright and related rights to this work.

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