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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 — 250 tools in one place, with no install and no account.

Popular:
  • 250 tools across 8 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.

91

Image Tools

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

Explore Image tools

10

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.

Explore PDF tools

17

Text Tools

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

Explore Text tools

16

Developer Tools

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

Explore Developer tools

8

SEO Tools

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

Explore SEO tools

25

Calculators

Percentage, age, BMI, loan EMI, compound and simple interest, tip, salary, ROI, fraction, ratio, average and standard-deviation calculators — exact, private and free.

Explore Calculators tools

76

Converters

Convert length, weight, temperature, volume, area, speed, data, time, pressure, energy and angle between exact units — plus number bases, roman numerals, decimal to fraction, colours and time zones. Instant and private in your browser.

Explore Converters tools

7

Generators

Generate strong passwords, random numbers, QR codes, realistic names, usernames, business names and balanced teams — all with cryptographic randomness, private in your browser.

Explore Generators 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.

Background Remover

Image

Erase a plain background from a photo and export a transparent PNG, in your browser.

Single file · 25 MB max

GIF to JPG Converter

Image

Save a GIF's first frame as a compact, universally accepted JPG — no upload.

Batch upload · 25 MB max

GIF to PNG Converter

Image

Turn a GIF into a lossless PNG — the first frame, in full colour, right in your browser.

Batch upload · 25 MB max

Image Upscaler & Enhancer

Image

Enlarge a small or soft image up to 4K and 8K, then sharpen it — all in your browser.

Single file · 25 MB max

JFIF to JPG Converter

Image

Re-save an awkward .jfif download as a clean, standard .jpg everyone can open.

Batch upload · 25 MB max

JPG to PNG Converter

Image

Turn .jpg photos into lossless .png images in your browser, in batches of up to 20.

Batch upload · 25 MB max

Pixelate Image (Mosaic)

Image

Block out faces, plates and text with an adjustable mosaic pixelation.

Single file · 25 MB max

PNG to WebP Converter

Image

Re-encode PNGs as WebP to cut file size while keeping transparency, right in your browser.

Batch upload · 25 MB max

Sharpen Image

Image

Bring back crisp edges in soft or slightly blurry photos with an unsharp mask.

Single file · 25 MB max

Pencil Sketch Effect

Image

Turn any photo into a hand-drawn pencil sketch with a detail slider.

Single file · 25 MB max

Vintage Photo Effect

Image

Give any photo an aged, faded retro look in one click.

Single file · 25 MB max

Blur Image Online

Image

Soften a photo or hide detail with an adjustable Gaussian blur slider.

Single file · 25 MB max

Browse all 250 tools

Guides & tutorials

In-depth image guides

50 plainly written answers on formats, compression, transparency and web performance — each with the exact settings, the trade-offs and the fixes for common failures.

Browse all 50 guides

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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