Base64 Toolkit
Base64 Tools
Encode and decode Base64, convert between Base64 and images or audio, and turn images into Base64 data URIs. Runs entirely in your browser.
Base64 Encoder & Decoder
Encode or decode your data using Base64 format - A standard encoding method for binary data
Open toolBase64 to Audio Converter
Convert Base64 to audio files online - Free decoder for music and sound files
Open toolBase64 to Image Tool
Convert Base64 encoded strings to images
Open toolImage to Base64 Tool
Convert images to Base64 encoded strings
Open toolWhy Base64 keeps showing up
Base64 is how binary data travels through text-only channels — API responses, JSON payloads, email attachments, CSS data URIs, embedded assets. If you work with APIs or frontends, you'll meet a Base64 string that is secretly an image, an audio clip, or a chunk of text you need to read.
These tools handle the common cases: encode or decode text, pull an image or audio file out of a Base64 string, or turn an image into a Base64 data URI for inline embedding. Everything runs locally in your browser, which matters — Base64 strings often carry real file content you'd rather not hand to a random server.
What you can do here
- 1Encode text to Base64 or decode Base64 back to text.
- 2Convert a Base64 string into a viewable image.
- 3Convert a Base64 string into playable audio.
- 4Turn an image file into a Base64 data URI.