OneTabTool — online tools for everyday work

Find tools for writing, code, images, PDFs, calculations and everyday productivity. Read the instructions, choose the right operation and review the result.

• Font Identifier

  Find close Google Font matches from an image on your device. Free model, no API key.

• Encrypted Local Vault

  Store credential entries locally with passphrase encryption and encrypted backups.

• Local AI Text & Image Lab

  Model-dependent sentiment, summaries, image upscaling, object detection and face redaction.

• Markup & Responsive Playground

  Edit Markdown, test responsive layouts and preview code in an isolated sandbox.

• Timers & Stopwatch

  Stopwatch with laps, countdowns and date countdowns.

• Function Graph Plotter

  Plot mathematical functions of x and download the graph.

• Image OCR, SVG & Barcode Tools

  Recognize text, convert SVG, extract GIF frames and sample image colors.

• Creative & Puzzle Generators

  Generate names, writing prompts, bingo, word searches and Sudoku.

• SEO Markup & Content Inspector

  Inspect structured data and headings; build canonical and hreflang links.

• Image Editing Lab

  Watermarks, palettes, filters, sprites, GIFs, icons and batch renaming.

• Creative Card & Mockup Maker

  Design quote cards, social images, memes and business cards.

• Audio Editing Studio

  Trim, join, reverse, normalize and export audio as WAV.

• Video & Media Converter

  Local video conversion, GIFs, compression, clips and audio extraction.

• Screen, Camera & Voice Recorder

  Record your chosen screen, camera or microphone.

• Music & Sound Tools

  Metronome, tone, noise, chords, scales and note frequencies.

• Speech & Dictation

  Read text aloud and dictate using browser voice services.

• Whiteboard & Sketchpad

  Draw, erase, undo and download sketches as PNG.

• Personal Trackers

  Track habits, budgets and packing lists with browser storage.

• Flashcards & Quiz Builder

  Build study cards, quizzes and multiplication practice.

• File Utilities

  File hashes, EXIF metadata, archives and Base64.

• Data Converter & Validator

  Convert JSON, YAML, XML, CSV, TOML and INI; generate schemas.

• Code Formatting Studio

  Format and validate code, test regex and compare text.

• Developer Utilities

  Inspect URLs and headers, parse cron, generate IDs and preview markup.

• Code & Project Generators

  Infer code types and generate project configuration files.

• CSS & Color Design Studio

  Design gradients, layouts, effects and accessible color combinations.

• Spreadsheet Converter

  Convert Excel, CSV and JSON locally without executing formulas.

• Math & Statistics Studio

  Scientific calculations, equations, statistics and number tools.

• Finance & Business Calculators

  Loans, savings, pricing and business calculations.

• Measurements & Everyday Calculators

  Geometry, science, household estimates and travel calculations.

• Universal Unit Converter

  Convert length, mass, temperature, speed, time, area and data.

• Date, Time & Calendar Tools

  Calculate dates, work hours, calendar weeks and time zones.

• Business & Document Studio

  Build invoices, resumes, proposals and editable document drafts.

• Security & Crypto Toolkit

  Passwords, hashes, tokens, key pairs and authenticator codes.

• Network & Browser Toolbox

  Public DNS lookups, subnet calculations and browser inspection.

• Marketplace Listing Generator

  Create and edit Amazon or Flipkart listing drafts; export Excel or CSV.

• Meta Tags & Social Preview

  Create metadata and preview search and social cards.

• Schema Markup Generator

  Generate Article, Business, Product and FAQ JSON-LD.

• Robots.txt & Sitemap Builder

  Build crawl rules and XML sitemaps from your URLs.

• Keyword Placement Checker

  Check keyword usage in titles, headings and body text.

• Content Brief Builder

  Plan a content outline from your topic and audience.

• Image SEO Helper

  Draft alt text and download descriptively renamed images.

• SEO Page Audit

  Find missing SEO essentials with a page checklist and priority fixes.

• Website Speed Test

  Check mobile and desktop performance, SEO and accessibility.

• UTM Builder

  Build single and bulk campaign links, copy or export CSV.

• Short & Smart Links

  Custom aliases, device destinations and click analytics.

• Bio Link Builder

  Create your profile page with multiple links and themes.

• Engagement Rate Calculator

  Calculate engagement from your own followers, likes and comments.

• YouTube Tag Generator

  Find video tag suggestions using the configured YouTube data service, then edit and copy them.

• PDF Tools

  Organize, inspect, convert and edit PDF files. Available operations depend on the configured processing engines.

• Text Editor & Cleanup

  Convert case, clean text, find and replace, and count words and sentences.

• Lines & List Manager

  Clean, sort, merge, filter and compare lists.

• Repeater & Combinations

  Repeat text and generate combinations or permutations.

• Random Generator

  Pick lines, shuffle text, and generate numbers or strings.

• Text Encoding & Effects

  Binary, Unicode, reverse text, ROT13 and word scrambling.

• Text Encryption

  Encrypt and decrypt text with a password in your browser.

• Timestamp Converter

  Convert Unix timestamps and dates in UTC or local time.

• Number Tools

  Generate number sequences and keep a tally.

• QR Code Studio

  Generate custom QR codes from links or text, and scan/read QR codes directly from images.

• Online Code Compiler & Runner

  Write and run supported programming languages through the configured code execution service; availability varies by language.

• Stock Image Search

  Find stock photos from connected image providers and check the original source license before use.

• Image Compressor & Converter

  Compress, resize, crop and convert images in your browser; available formats depend on browser support.

• Background Remover

  Remove image backgrounds with a downloadable model and inspect the cutout before exporting PNG.

• ROAS Calculator

  Calculate ROAS, Break-Even ROAS, AOV, Net Profit, Cost Per Purchase, COGS & CTR for digital marketers.

• Typing Speed Test

  Benchmark your words per minute (WPM), accuracy, and typos with live line-by-line validation and score charts.

Working with OneTabTool

Tools use a mix of browser processing, server features and third-party services. Check the tool’s notes for file limits, provider requirements and output assumptions. Your notes, tasks, focus timer and music remain part of the workspace while navigating tools.