Search DevTools

Jump to any tool or page

Base64 Encoder & Decoder

Encode text or a file to Base64, or decode it back. Handles Unicode correctly and updates as you type.

Plain text

paste or upload

Base64

The result appears here as you type.

Developer Utilities

About Base64 Encoder/Decoder

Encode or decode Base64 strings and files for web, APIs, or cryptographic use. DevTools provides focused browser-based developer utilities so you can validate inputs, inspect payloads, copy results, and move between related utilities without installing local dependencies or configuring heavy toolchains.

Frequently asked questions

What is Base64 Encoder/Decoder?
Base64 Encoder/Decoder is a free online developer utilities tool. Encode or decode Base64 strings and files for web, APIs, or cryptographic use.
Is Base64 Encoder/Decoder free to use?
Yes. Base64 Encoder/Decoder is 100% free in your browser with no required sign-up, rate limits, or paywalls.
Who is Base64 Encoder/Decoder useful for?
Base64 Encoder/Decoder is built for developers, testers, technical writers, product engineers, students, and DevOps teams who need reliable, fast browser utilities for everyday development work.
Is data processed securely in the browser?
Yes. All core formatting, encoding, generation, and inspection operations happen locally in your browser client sandbox without sending confidential payloads to external servers.