107+ free tools · No sign-up needed
Every online tool you need, in one place
Free online tools for PDF, image, text, SEO and developer tasks, plus calculators: fast and private. Tools run right in your browser, so your files stay on your device.
Tools to get started
Handy tools for everyday tasks — a good place to start. Filter by category or pick any tool below.
PDFPDF Tools 16 toolsView all →
IMGImage Tools 14 toolsView all →
TtText Tools 18 toolsView all →
</>Developer Tools 22 toolsView all →
SEOSEO Tools 11 toolsView all →
%Calculators 17 toolsView all →
✱Productivity Tools 9 toolsView all →
Free tools
Categories
Free to use
Sign-ups needed
Latest guides & tips
Step-by-step guides to get more out of every tool.
How to Calculate Hours Worked (With Breaks and Overtime)
Hours worked = finish time minus start time minus unpaid breaks. Worked examples, night shifts, decimal hours, overtime and pay.
How to Convert WebP to JPG or PNG (Online, Windows and Mac)
Convert WebP to JPG or PNG for free: online in your browser, with Paint on Windows or Preview on Mac, plus which…
How to Convert HEIC to JPG on iPhone, Windows and Mac (Free)
Convert iPhone HEIC photos to JPG for free: online in your browser, on iPhone settings, Windows and Mac — plus how to…
What Is Domain Authority? How to Check It for Free (and Improve It)
Domain authority explained in plain English: what DA, DR and Authority Score mean, whether Google uses them, how to check domain authority…
About One Stop Online Tools — privacy, tips & FAQ
Why use these free online tools?
Most free online tools ask you to upload a file, wait in a queue, and then sign up before you can download the result. These tools skip all of that. They open instantly, run in your browser, and hand you the finished file or text straight away.
Because the work happens on your own device, private documents, photos and data are not uploaded to our servers. It also means the tools keep working on slow connections, and many keep working offline once a page has loaded.
Every tool is free with no account, no watermark and no daily limit. Bookmark the ones you use most, or start with the full list of tools and the step-by-step guides.
Curious how a browser can edit files without uploading them? Modern browsers include the standard File API, which lets web pages read files you choose directly on your device.
Frequently asked questions
What is One Stop Online Tools?
One Stop Online Tools is a free collection of 107+ free online tools for PDFs, images, text, SEO, development, calculations and everyday productivity, all in one place.
Are the tools really free?
Yes. Every tool is free to use with no sign-up, no watermark and no usage limits.
Are my files uploaded to your servers?
No. Tools run inside your browser, so your PDFs, images and text stay on your own device.
Do the tools work on mobile phones?
Yes. The site and every tool are fully responsive and work in modern mobile browsers.
Which tools should I try first?
Merge PDF, Compress Image, Word Counter, Password Generator, JSON Formatter, QR Code Generator and Percentage Calculator are good places to start.
Bookmark OneStop — your everyday toolbox
Free tools for files, text, code and numbers, with new tools added regularly.
Browse free online tools by category
Pick a category to find the right tool for the job.