About Toolbenchly
Toolbenchly is a collection of 66+ free online tools for everyday tasks: compressing and converting images, merging and splitting PDFs, formatting code and data, converting time zones, units and currencies, and creating invoices. Our goal is simple: each tool should do one job well, load fast, work on any device and respect your privacy.
Private by design
Most online converters upload your files to a server, process them there and send them back. Our tools do the work inside your web browser instead, using the same technology that lets web apps edit photos and documents. When you compress an image or merge a PDF here, the file is processed on your own device and is never uploaded to us. You can verify this yourself: open your browser’s developer tools, switch to the Network tab and use any file tool. You will see that no file data is sent anywhere.
A few tools need public reference data to work. The currency converter downloads daily exchange rates published by the European Central Bank; the request contains only the currency code, never your amounts. Preferences such as your theme or saved invoice draft are stored in your browser’s local storage and never leave your device.
How we build and test our tools
- Proven open-source engines. PDF tools use pdf-lib and Mozilla’s PDF.js, the PDF engine built into Firefox. Image tools use your browser’s native image encoders. HEIC photos are decoded with heic-to (libheif, LGPL-3.0, used unmodified) and Nepali dates are converted with nepali-date-converter (MIT).
- Exact formulas and official definitions. Unit conversions use internationally defined factors (for example, 1 inch = 2.54 cm exactly); loan payments use the standard amortization formula; color contrast follows the WCAG 2.2 specification.
- Automated tests. Calculations and conversions are covered by unit tests, every page is checked in a real browser before each release, and the file tools are run end-to-end with sample images and PDFs.
- Reviewed content. Guides and FAQs on each page are written to explain the task, the limits and common problems, and are reviewed when tools change. Each page shows the date it was last updated.
- Accessibility. We design for keyboard use, screen readers and WCAG AA color contrast, and support dark mode. If something doesn’t work for you, please tell us.
Free, supported by ads
Every tool is free with no sign-up, no watermarks and no daily limits. We keep the site running by showing advertising. Ads are placed away from the tools themselves, never inside upload areas or next to download buttons, and they never have access to the files you work with.
Limits and accuracy
We work hard to make results correct, but tools can’t replace professional advice. Exchange rates are daily reference rates rather than live trading prices, loan figures are estimates for fixed-rate loans, and you should always check important documents before submitting them. If you find a mistake, please tell us and we will fix it.
Contact and feedback
Found a bug, have a question or want a tool we don’t have yet? Contact us. We read every message and add new tools regularly.