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Collabs Tool

Collabs Tool — a free toolbox that runs inside your browser

Free Online Tools for Images, PDFs, Text & More

Convert and compress images, merge or split PDFs, clean and count text, format JSON, generate passwords and QR codes, and run everyday calculations — 57 tools in one place, with no install and no account.

Popular:
  • 57 tools across 6 categories
  • Nothing is uploaded
  • Results in under a second
  • Free, with no watermark

Start here

What you can do on Collabs Tool

Six areas of the toolbox. Each opens a hub page listing every tool inside it, with instructions and answers to the questions people actually ask.

Image Tools

Convert between WebP, PNG and JPG, shrink file sizes and resize images — all processed locally on your device.

19 tools

PDF Tools

Turn PDFs into images, build PDFs from JPGs, merge documents and extract page ranges — handled in-browser with pdf-lib and PDF.js.

10 tools

Text Tools

Word and character counters, case converters, line sorting, duplicate removal and placeholder text generators for writers and editors.

6 tools

Developer Tools

JSON formatting and minifying, Base64 and URL encoding, UUID generation, timestamp conversion and a live regular-expression tester.

7 tools

SEO Tools

Preview how titles and descriptions appear in search results, measure keyword density, and construct clean UTM-tagged campaign links.

5 tools

Calculators & Generators

Percentage, age and BMI calculators, unit conversion, random numbers, strong password generation, QR codes and colour format conversion.

10 tools

Most used

Popular tools

The utilities people reach for most often. Open one and the workspace is already at the top of the page.

Compress PDF

PDF

Shrink PDF files by rewriting them with compressed object streams.

Batch upload · 40 MB max

HEIC to JPG Converter

Image

Open iPhone HEIC photos and save them as JPG, on your device.

Batch upload · 40 MB max

Video to GIF

Image

Sample any browser-playable clip into a looping GIF.

Single file · 100 MB max

QR Code Generator

Calculators

Create QR codes for URLs, text, Wi-Fi, contacts and more.

Instant · no upload

Password Generator

Calculators

Create strong, cryptographically random passwords entirely on your device.

Instant · no upload

Random Number Generator

Calculators

Generate random integers, decimals or lists with no repeats.

Instant · no upload

BMI Calculator

Calculators

Calculate body mass index from height and weight, metric or imperial.

Instant · no upload

Unit Converter

Calculators

Convert length, weight, temperature, volume, area, speed, data and time.

Instant · no upload

Age Calculator

Calculators

Calculate an exact age in years, months and days between two dates.

Instant · no upload

Percentage Calculator

Calculators

Work out percentages, increases, decreases and reverse percentages.

Instant · no upload

UTM URL Builder

SEO

Build clean, consistently formatted campaign tracking URLs.

Instant · no upload

Meta Description Checker

SEO

Preview your meta description exactly as it will appear in search results.

Instant · no upload

Browse all 57 tools

Why Collabs Tool

The work happens where your files already are

Most online tool sites upload your file to a server, queue it, and show you an advert while you wait. This one does the job in the tab you are already looking at.

More about Collabs Tool

  • Instant, because nothing uploads

    Most tools here finish before you would notice a progress bar. There is no upload, no queue and no server round trip — the work happens on your machine while you wait, which is both faster and cheaper than any hosted alternative.

  • Private by construction

    Your files, text and generated secrets never leave the browser. There is no storage bucket to breach, no retention window to read about and no third-party processor in the chain. Close the tab and the data is gone.

  • No sign-up, no limits, no watermarks

    Every tool is free and unrestricted. There is no account, no daily quota, no email gate and nothing stamped on your output. Batch processing works from the first visit.

  • One place for everything

    Image conversion, PDF work, text utilities, developer tools, SEO checks and everyday calculators share a single interface and a single design language, so you learn it once and use it everywhere.

  • Built for the task, not the funnel

    No interstitials, no fake progress, no upsell before the result. Each page opens with the tool and puts the explanation below it, because that is the order people actually want.

  • Works on any device

    Mobile-first layouts, full keyboard support and no plugins. The same tool behaves identically on a phone, a tablet and a desktop, and respects your system's dark-mode preference.

How it works

Open a tool, use it, close the tab

Four steps, the same on every page, and for most tools the whole thing is over in under ten seconds.

  1. Find the tool

    Search from the homepage, browse a category, or follow a related-tool link. Every tool has its own page with the same predictable layout.

  2. Add your input

    Drop files onto the upload area, paste text, or fill in a form. Nothing is transmitted — the input stays in your browser's memory.

  3. Run it

    Press the primary action. Processing is local, so most tools complete in well under a second regardless of your connection.

  4. Take the result

    Copy to the clipboard or download the file. Preview before you commit, reset to start again, and nothing is retained afterwards.

Questions

Frequently asked questions

The things people ask before trusting a site with a file.

Are these tools really free?

Yes. Every tool is free to use with no account, no trial period and no daily limit. The site is supported by unobtrusive display advertising on high-traffic pages, and a premium tier is planned for later that will add server-side processing for very large files, saved history and an ad-free experience. Nothing currently behind a tool page will ever move behind a paywall.

Where does my data go when I use a tool?

Nowhere. Almost every tool on this site processes your input entirely inside your browser using JavaScript, the Canvas API, WebAssembly and the Web Crypto API. Your files are never uploaded to a server, so there is no copy for anyone to access, log or retain. When you close or refresh the tab, the data is discarded. A small number of tools that genuinely cannot run client-side are clearly labelled as server-processed, and each one states what happens to the data.

Do I need to install anything?

No. There is no software, no browser extension, no plugin and no desktop client. If your browser is reasonably current — Chrome, Edge, Firefox or Safari from the last few years — everything works. Tools that depend on a specific browser capability tell you before you start rather than failing silently.

Is there a file size limit?

Each tool states its own limit next to the upload area, typically 25 MB for images and 50 MB for PDFs. Because processing happens in your browser, the real constraint is your device's available memory rather than a server quota. Very large files may be slow or may fail on a low-memory device; the tools report this clearly instead of hanging.

Does it work on mobile?

Yes. Every page is designed mobile-first, and touch devices can select files from the photo library, files app or camera directly. Performance depends on the device — a large image conversion or a long PDF render takes noticeably longer on a mid-range phone than on a desktop, but it completes.

Can I use these tools for commercial work?

Yes, without restriction. There is no licensing condition attached to output produced here, and no watermark is added to any file. Use the results in client work, products, marketing material or published documents.

How do you handle cookies and analytics?

Minimally. The site uses a small number of strictly necessary cookies — a theme preference and a list of recently used tools, both stored locally on your device rather than sent anywhere. Analytics are privacy-conscious and aggregated; they record which tools are used and whether they errored, never file contents or personal data. The full detail is in the Cookie Policy.

A tool did not work for me. What should I do?

Check the browser console for an error, try a different browser, and confirm your file is under the stated size limit. If it still fails, contact us with the tool name, your browser and version, and a description of the input — please do not send the file itself unless it contains nothing sensitive. Reports like this are how the error-rate monitoring works, and fixes ship quickly.

Pick a tool and finish the job

Search the box at the top of this page, or open the directory and filter by keyword, category or newest first.

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