About Toolinga

Toolinga is a collection of free online tools for everyday tasks: resizing and converting images, calculating interest, fuel and electricity costs, checking homework and creating barcodes, invoices and more.

What makes our tools different

• Private: the tools run in your browser. Images, invoices and numbers stay on your device and are not uploaded to our servers.
• Free: every tool is free to use, with no account and no watermark. The site is funded by advertising.
• Fast: pages are small, load quickly on mobile and give results while you type.
• In your language: every tool is available in English, Spanish, Portuguese, German and French, with local number and date formats.

How we build and check the tools

Every calculator is tested with known examples before it goes live, and the method is explained on the page so you can follow it. You can read more on our editorial policy page. If you find a mistake or have an idea for a new tool, please contact us.