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How to use the File to Base64 — step by step
A short walkthrough of file to base64 on toolmix.io. Encode images, audio, video or PDFs — and decode back to a file. Follow the three steps below and you are done in under a minute.
Open the File to Base64How it works
- 1File to Base64 is a free browser tool on toolmix.io: encode images, audio, video or pdfs — and decode back to a file.
- 2Enter or paste your input on the left and the result updates immediately — no sign-up, no upload queue for the tools that run locally.
- 3Copy or download the output in one click, then jump to any other developer tools utility from the sidebar.
Frequently asked questions
Is File to Base64 free to use?
Yes. Everyday use is free. A free account also saves your history, while watermark-free exports and higher AI limits come with a paid plan.
Do I need to create an account to use File to Base64?
No. You can use it as a guest. Signing in adds saved history, and paid plans add higher AI limits and clean, watermark-free exports.
Is my data kept private?
Text and image tools that can run in your browser do exactly that, so the content never leaves your device. AI tools send your prompt or file to the model provider only to produce the result.
Does File to Base64 work on mobile?
Yes. The layout adapts to phones and tablets, so you can use it on the go without horizontal scrolling.