OGG Compressor

Compress OGG audio with Vorbis quality and sample rate settings. Compare file sizes, listen to the result, and download locally in your browser.

Lower values usually mean smaller files.

How to compress OGG files

  1. 1

    Select your OGG audio

    Choose one or more OGG files from your device. Mono and stereo Vorbis or Opus audio is supported. Play the source to check the recording before you change its export settings.

  2. 2

    Choose quality and sample rate

    Start with Quality 4 and Source sample rate. Lower the quality for a smaller sharing copy, or choose a lower sample rate when high-frequency detail is less important.

  3. 3

    Compare and download

    Select Compress OGG to create Vorbis files. Listen to the actual output and compare its size with the original. Download a single file directly, or save multiple available results in a ZIP.

OGG compression for music, speech, and sharing

Make a separate Vorbis copy, check what changed, and keep the version that fits your task.

01

Choose the size and detail tradeoff

Vorbis quality mode allocates data according to the audio. A lower level usually favors a smaller file, while the actual bitrate varies with the recording and export parameters.

  • Choose a quality level from 0 to 10.
  • Start at Quality 4, then compare the result.
  • No fixed bitrate or compression ratio is promised.

Compression example

Quality and file size

012345678910
Smaller-file preferenceMore-detail preference
02

Make a music copy for sharing

Keep the source recording and create a separate OGG copy for a message, project handoff, or personal library. Listen to the encoded result before you decide which version to use.

  • Preserve mono or stereo without automatic downmixing.
  • Compare the original and output file sizes.
  • Download valid output even if it is larger.

Compression example

Listen before sharing

Original OGGVorbis copy
03

Match sample rate to a voice clip

A voice note may need less high-frequency detail than music. Select a lower sample rate when that tradeoff suits the clip, then listen for changes in speech clarity and background sound.

  • Keep each file’s original decoding sample rate.
  • Choose a lower rate for a separate speech copy.
  • Higher rates cannot recover missing detail.

Compression example

Sample rate choices for speech

48,000 Hz
44,100 Hz
22,050 Hz

Lower sample rates limit high-frequency detail and may change file size.

04

Process a batch and compare real results

Apply one set of choices to a batch while each file keeps its own resolved output plan. Completed results remain available as the queue continues, and a failed item can be retried separately.

  • Download one result directly or several in a ZIP.
  • Keep the last successful result after failure or cancellation.
  • Retry with the failed attempt’s saved settings.

Compression example

Saved output settings

OGG · 44,100 HzQuality 4
OGG · 48,000 HzQuality 4

Compare actual sizes

OGG compression questions

Which OGG files can I compress?
Use .ogg files containing mono or stereo Vorbis or Opus audio. Other extensions, unsupported codecs, chained Ogg files, and multiple logical streams are rejected. Output is always a new Vorbis file in an Ogg container.
How does the OGG compressor reduce file size?
The tool decodes your original upload and encodes a new Vorbis copy at the selected quality and sample rate. Lower quality generally uses less data. Size also depends on the recording, channels, and sample rate, so savings are not guaranteed.
Is OGG compression lossless?
No. Vorbis is a lossy codec, and encoding an existing Vorbis or Opus recording can discard more detail. Opus input is converted to Vorbis. Keep your original file, and listen to the output before using it as a replacement.
Is Quality the same as a target bitrate?
No. Quality selects a Vorbis encoding level rather than an exact kbps value or percentage. The encoder varies bitrate with the audio and output parameters. A higher level may retain more detail, but it cannot repair an already lossy source.
Which sample rate should I choose?
Source preserves each file’s decoding rate; Opus decodes at 48 kHz. Lower rates limit high-frequency content and may suit speech. They can also change bitrate and size. Raising the rate cannot restore detail that the source has lost.
Why is the compressed OGG larger?
A low-bitrate source or an efficient Opus file can be smaller than a new Vorbis copy. Higher quality can also increase size. The tool shows actual sizes and keeps valid output downloadable even without savings; it does not claim a fixed reduction.
What are the batch limits and retry rules?
Desktop allows 10 files within 200 MB total; mobile allows 5 within 100 MB. Output and memory budgets also apply. Retry uses saved settings, and failure or cancellation keeps an earlier successful result.
Are audio files uploaded, and are tags preserved?
Audio processing stays in your browser; files are not sent to an audio server. Source tags, artwork, and chapters are removed from output. Save your downloads before clearing the list or leaving the page, because results are not stored in an account.

Make your next OGG sharing copy

Choose quality and sample rate, compare the actual result, and save the copy you want to keep.