Extracts the audio track from MP4 video files and saves it as a standalone MP3 file, preserving original bitrate and sample rate.
Converts a given date and time between any two time zones from a database of 400+ IANA time zones, and simultaneously displays it in Unix timestamp.
Convert ZIP files to TAR, RAR, or uncompressed archives directly in your browser.
Re-encapsulates MKV video files into the more universally compatible MP4 container without re-encoding the underlying video stream.
Overlays custom text captions onto images with control over font, size, color, alignment, opacity, and rotation angle.
Applies resize, crop, rotate, format conversion, and compression settings to dozens of images simultaneously with one click.
Extracts the audio track from uploaded video files (MP4, MOV, AVI, WebM) and encodes it as a high-quality MP3 file.
MP4 to MP3 lets you extracts the audio track from MP4 video files and saves it as a standalone MP3 file, preserving original bitrate and sample rate.. Everything runs inside your browser — nothing is uploaded to a server. It works on any device with a modern web browser.
Yes, this tool is completely free. No credit card or registration is required for standard usage.
All processing happens 100% locally in your browser. Your data is never uploaded to any server.
Yes. Once the page has loaded, the tool runs entirely offline without requiring an internet connection.
Standard tools are unlimited. Pro tools allow free daily usage with an option to upgrade.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.