Does Swap Stereo upload my file or text to Tool-You servers?

No. Swap Stereo runs in this browser tab. Files stay on the device. Limit note: Audio only. Swaps L/R. Keeps stereo. Output MP3. Max 100 MB.

Should I use Stereo to Mono instead of Swap Stereo?

Use Swap Stereo when you need Swap left and right channels, then MP3. Use Stereo to Mono when you need Downmix to one channel and export MP3. They share a category (Audio) but not the same job.

Swap Stereo

Swap left and right channels, then MP3.

Pans stereo so left and right trade places, then MP3. Unlike Stereo to Mono this keeps two channels. Unlike Audio Convert this does not pick WAV or AAC. First run downloads the engine.

What Swap Stereo does

Pans stereo so left and right trade places, then MP3. Unlike Stereo to Mono this keeps two channels. Unlike Audio Convert this does not pick WAV or AAC. First run downloads the engine.

Swap Stereo sits in the Audio group on purpose. It is not Stereo to Mono (Downmix to one channel and export MP3.) and not Audio Convert (Convert between audio formats.). Choose this page when you need Swap left and right channels, then MP3. If you stretch Swap Stereo into a neighbor’s job, the result will look wrong even though the site chrome looks the same.

How to use Swap Stereo

Stay on this Swap Stereo page (/audio/swap-stereo). Do not switch to Stereo to Mono unless you actually want Downmix to one channel and export MP3..
Add the file type Swap Stereo accepts. Hint from the path: audio · swap stereo. Swap left and right channels, then MP3.
Set only the options that match Swap Stereo. Neighbor Audio Convert does something else (Convert between audio formats.). Tool note: Pans stereo so left and right trade places, then MP3. Unlike Stereo to Mono this keeps two channels. Unlike Audio Convert this does not pick WAV or AAC. First run downloads the engine.
Run Swap Stereo in this tab. Browser memory still applies: Audio only. Swaps L/R. Keeps stereo. Output MP3. Max 100 MB.
Download or copy the result from Swap Stereo. If it is the wrong job, open Stereo to Mono instead.

When not to use Swap Stereo

Skip Swap Stereo when a neighbor tool matches better — start with Stereo to Mono or Audio Convert — or when the description already warns the job will fail. In the tool’s own words: Pans stereo so left and right trade places, then MP3. Unlike Stereo to Mono this keeps two channels. Unlike Audio Convert this does not pick WAV or AAC. First run downloads the engine.

Questions about Swap Stereo

What does Swap Stereo do that other Audio pages on this site do not?: Pans stereo so left and right trade places, then MP3. Unlike Stereo to Mono this keeps two channels. Unlike Audio Convert this does not pick WAV or AAC. First run downloads the engine. Short version: Swap left and right channels, then MP3.
Does Swap Stereo upload my file or text to Tool-You servers?: No. Swap Stereo runs in this browser tab. Files stay on the device. Limit note: Audio only. Swaps L/R. Keeps stereo. Output MP3. Max 100 MB.
Should I use Stereo to Mono instead of Swap Stereo?: Use Swap Stereo when you need Swap left and right channels, then MP3. Use Stereo to Mono when you need Downmix to one channel and export MP3. They share a category (Audio) but not the same job.
What are the limits of Swap Stereo?: Audio only. Swaps L/R. Keeps stereo. Output MP3. Max 100 MB. Also: Pans stereo so left and right trade places, then MP3. Unlike Stereo to Mono this keeps two channels. Unlike Audio Convert this does not pick WAV or AAC. First run downloads the engine.