Audio tools to convert, trim, merge and compress
Convert and compress audio files with ease.
These audio tools handle small editing jobs on sound files: converting between formats, cutting a section, joining clips, making a file smaller, evening out loudness and changing speed. Upload an MP3, WAV, FLAC, OGG, AAC or M4A file up to 50 MiB, choose your options and download the result. They are single-purpose tools, not a multitrack editor, so they suit quick fixes rather than full production.
Choose a tool
Audio Converter
Convert between MP3, WAV, FLAC and more.
Use tool →Audio Compressor
Reduce audio file size for easy sharing.
Use tool →Trim Audio
Cut an audio clip down to a specific start and duration.
Use tool →Merge Audio
Combine multiple audio clips into one, in order.
Use tool →Audio Speed Changer
Speed up or slow down an audio clip.
Use tool →Audio Normalizer
Even out and boost the loudness of an audio clip.
Use tool →Which audio tool for which job
To change format, for example WAV to MP3, use Audio Converter. To make a file smaller for sending or uploading, use Audio Compressor. To keep only part of a recording, such as the useful middle of a voice memo, use Trim Audio. To join recordings into one file, use Merge Audio. If a recording is too quiet or varies in volume, Audio Normalizer evens it out, though it cannot remove background noise or fix clipping. Audio Speed Changer makes playback faster or slower, which is handy for lectures or transcription. If the sound is inside a video, take it out first with Extract Audio from Video in Video Tools.
Limits and privacy
Each audio file can be up to 50 MiB. Audio jobs run in the background through a shared queue, so you see a status page and larger files take longer; if the queue is busy, try again later. Results are held only briefly and then removed, so download them when they finish. Converting between lossy formats such as MP3 and AAC loses a little quality each time, and no conversion can restore detail that a file already lost. Keep the original, and only upload recordings you are allowed to share with a third-party service.
Common audio workflows
Clean up a voice memo: Trim Audio to cut dead air, Audio Normalizer for steadier volume, then Audio Compressor to send it. Prepare a podcast clip: Merge Audio for intro and body, then Audio Converter to MP3. Rip a video's soundtrack: Extract Audio from Video, Trim Audio, Audio Converter. Review a lecture quickly: Audio Speed Changer to speed it up. Archive without losing quality: convert to FLAC from a lossless source such as WAV. Download each result and upload it to the next tool.
Formats in plain terms
MP3 and AAC/M4A are lossy and small, and play almost everywhere. WAV and FLAC are lossless: WAV is large and uncompressed, FLAC is smaller with the same quality. OGG is an open lossy format with less device support. Choose MP3 if unsure, and a lossless format when you plan more edits.
Frequently asked questions
What audio formats can I upload?
Audio tools accept MP3, WAV, FLAC, OGG, AAC and M4A files up to 50 MiB. The output formats available depend on the tool, so check the options on the tool page, especially for Audio Converter.
How do I make an audio file smaller?
Use Audio Compressor to reduce the size, or Audio Converter to move from WAV or FLAC to a lossy format such as MP3. Trimming silence or unwanted parts with Trim Audio also helps. Smaller files mean some quality loss.
Can I join several recordings into one?
Yes. Merge Audio combines audio files into a single file. If the recordings are in different formats, convert them to the same one first with Audio Converter, then merge them.
Will normalizing fix a noisy recording?
No. Audio Normalizer evens out loudness so a quiet recording is easier to hear. It does not remove background noise, hiss or distortion, and raising the level can make existing noise more noticeable.
Why is my audio job still waiting?
Audio jobs go into a shared background queue and run one after another. Larger files take longer, and a busy queue adds waiting time. The status page updates when your job is done, and you can download the result there.