Base64 to Video — Decode & Play Base64 Videos Online

Convert Base64 to a video online. Paste a Base64 string or data URI to instantly play it as MP4, WebM, OGG, or MOV — then download the file — all free and private, right in your browser.

Base64 input
Preview

Your decoded video will appear here.

How to use Base64 to Video

  1. Paste a Base64 string, or a full data:video/...;base64, URI, into the input.
  2. Pick the video format (MP4, WebM, OGG, MOV) if your string has no data URI prefix.
  3. Play the decoded video right in the preview panel.
  4. Click Download to save the video, or Data URI to copy it.

Features

Inline video player

Decode and play your Base64 video instantly with native controls.

Common formats

MP4, WebM, OGG, and MOV are all supported.

Data URI aware

Paste a full data:video/... URI and the format is detected automatically.

One-click download

Save the decoded video with the correct file extension.

Copy as data URI

Grab a ready-to-embed data URI for HTML.

100% private

Decoding happens entirely in your browser — nothing is uploaded.

What is Base64 to Video?

A Base64 to video converter decodes a Base64-encoded string back into a playable video file. Base64 is sometimes used to embed short clips in HTML, JSON, or API payloads as text; this tool reverses that so you can preview, verify, and download the original video. It detects data URI prefixes, supports common video formats, and runs entirely in your browser.

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Frequently Asked Questions

Everything you need to know about JSON Reader

Paste your Base64 string into the input box, choose the video format (or paste a full data:video URI), and the decoded video appears in the player. Click Download to save it.
MP4, WebM, OGG, and MOV. Pick the matching format when your string is a bare Base64 value; playback depends on your browser's codec support.
The Base64 may be incomplete, or the browser may not support that codec. Try downloading the file and opening it in a media player, and confirm the selected format matches the source.
Yes. All decoding runs locally in your browser — your Base64 data and the resulting video are never uploaded to a server.