Are files uploaded for this tool?

This browser tool processes the selected media locally on this device. The file is not uploaded to ArtPlayer servers for this workflow.

Will the export have a watermark?

No. ArtPlayer browser tools do not add watermarks to exported files.

The work runs in your browser, so speed depends on your device, browser, memory, source size, and the export settings needed for the result.

Recent Chrome, Edge, and other modern Chromium browsers usually work best for heavier browser media processing.

Try a smaller source, close other heavy tabs, reduce resolution or duration first, and keep the tab open until the export finishes.

Use JPG, PNG, or WebP artwork. Square cover art usually looks best in music players.

No. The audio and image are read and rewritten locally in your browser with Mediabunny.

No. The original stays unchanged, and the page creates a new M4A export with the cover image attached.

The first browser workflow writes a conservative MP4/M4A-style output so artwork metadata can be embedded reliably where supported.

Browser audio metadata tool

Local editingCover artNo upload

Attach JPG, PNG, or WebP cover art to a local audio file and export a new MP3 or M4A without uploading the source.

Audio and artwork

Drop a file here, or click to choose

Cover image

Output format

Three steps to finish the browser workflow.

1
Choose audio
Attach JPG, PNG, or WebP cover art to a local audio file and export a new MP3 or M4A without uploading the source.
2
Choose cover art
Choose a square JPG, PNG, or WebP image for the front cover.
3
Preview and Download
Check the finished result, then download the exported file.

Core details about privacy, browser support, output, and practical limits before you start.

Preview the selected JPG, PNG, or WebP cover before writing it into the exported audio file.

The workflow keeps existing descriptive tags when possible and replaces the attached front-cover image.

Audio and artwork stay on this device while the browser writes the new cover-art export.

Check supported inputs, output formats and usage requirements before you start.

Supported input	A decodable audio file, with JPG, PNG or WebP artwork when needed.
Output result	Export options: M4A.
Processing and privacy	Processing runs on this device. Source media is not uploaded for this workflow.
Browser requirements	A browser with the decoding and encoding capabilities needed by the selected media. Available codecs vary by device.
Usage limits	Processing capacity depends on duration, dimensions, codecs, settings and available device memory. Large inputs can fail; keep the original file.
Why is the export M4A?	The first browser workflow writes a conservative MP4/M4A-style output so artwork metadata can be embedded reliably where supported.