Reverse Audio Online - Free
Flip your audio backwards. The tool reverses the sample order so the last sound plays first and the first plays last. Reversal is lossless - the audio data is reordered, not re-encoded. Use it for creative effects, social media trends, or sound design.
Flip your audio backwards. The tool reverses the sample order so the last sound plays first and the first plays last. Reversal is lossless - the audio data is reordered, not re-encoded. Use it for creative effects, social media trends, or sound design.
Problems This Tool Solves
TikTok cannot reverse audio separately from video
TikTok only reverses video+audio together. Reverse your audio here, export it, then import as a sound into TikTok.
I want to reverse just one section, not the whole file
Select the region you want reversed on the waveform, then click Reverse. Only your selection is flipped.
I want to create a reverse reverb swell effect
Reverse your audio, apply Reverb with long decay and 100% wet mix, then reverse the result again. The tail now swells into each word.
Common Use Cases
TikTok Reverse Singing Challenge
Record yourself singing a phrase backwards, reverse the audio, and see how close it sounds to real speech. A viral format.
Sound design: reverse cymbal or riser
A reversed cymbal crash creates a rising swell that builds tension before a drop. Standard technique in music production.
Create a reverse reverb effect
Reverse your audio, apply reverb, reverse again. The reverb tail now swells into each word instead of trailing after it.
Check for hidden messages (backmasking)
Play a song backwards to hear if anything is hidden. Classic curiosity for Beatles, Led Zeppelin, and Pink Floyd tracks.
Create content for TikTok trends
The Reverse Singing Challenge is a viral format: sing a phrase backwards, reverse the audio, and compare with the real words. Millions of views on TikTok.
Censor audio without a bleep
Reversing a word or phrase makes it unintelligible without the jarring sound of a censor bleep. Cleaner result for podcasts and videos.
How to Reverse Audio Online
- Upload your audio file to the editor.
- Select the region you want to reverse, or leave nothing selected to reverse the entire file.
- Click Reverse. The audio plays backwards instantly.
- Preview the result. Export when you are happy with the effect.
Reverse vs Speed Change
Reverse
Plays audio backwards at the same speed and pitch. Duration does not change.
Best for: creative effects, social media trends, sound design, backmaskingChange Speed
Makes audio faster or slower. Does not reverse the playback direction.
Best for: transcription, practice, podcast speed-up, matching timingWhat to Reverse for Each Use Case
| Use case | What to select | Suggested follow up |
|---|---|---|
| TikTok reverse-singing trend | Vocal phrase, 5 to 15 seconds | Fade in 30 ms, export MP3 192 kbps |
| Reverse cymbal swell into a drop | Cymbal crash only, 1 to 3 seconds | Place right before the downbeat in your DAW |
| Reverse reverb on a vocal word | One word with a long tail of silence after | Apply Reverb 100% wet, long decay, then reverse again |
| Censor a word without a bleep | Just the word, no surrounding silence | Crossfade 10 ms at each edge so the cut is invisible |
| Sound design riser before a hit | A noise sweep or sustained tone, 2 to 4 seconds | Layer with a low rumble underneath |
| Backmasking check on a song | The whole track or a suspicious verse | Listen on headphones, slow speed to 0.75x to catch detail |
Typical Workflow for Reversed Audio
- Trim - Isolate the exact section you want flipped. A 5 to 30 second clip is the sweet spot for social content.
- Reverse - Flip the selection. The previous end becomes the new start.
- Fade In / Out - Add a 20 to 50 ms fade in to soften the harsh transient that often appears at the new start of the reversed clip.
- Convert - Export as MP3 at 192 kbps for TikTok or Reels, or WAV if you plan to layer it inside a DAW.
Quick Tips
- Short clips (10–60 seconds) work best for social media reversed-audio content.
- Combine reverse with a fade in to smooth the start of the reversed result.
- For reverse reverb: reverse the audio, apply a long reverb with 100% wet mix, then reverse again.
- Reverse only a selection for a surreal mid-track effect. The contrast between forward and backward audio is striking.
- Combine reversed audio with a fade in to smooth harsh transients at the start of the reversed result.
- Reversed audio has a long creative history. The Beatles pioneered reversed guitar on "Rain" in 1966, and Hendrix used it extensively. It remains a staple in modern sound design.
Common Misconceptions
Myth: Reversing audio degrades quality
Reality: Zero quality loss. Samples are reordered, not modified. The data is identical, just played backwards.
Myth: You cannot reverse just part of a track
Reality: Select any region on the waveform and reverse only that section. The rest stays unchanged. Great for surreal mid-track effects.
Common Problems and Fixes
There is a loud click or pop at the very start of the reversed clip
The original recording ended on a non-zero sample. After reversing, that lands at the start, which produces a click. Select the first 20 to 50 ms and apply Fade In, or trim a few milliseconds off the new start.
My reversed stereo file sounds like the channels swapped
They did not swap, but reversing reveals reverb tails that arrived from the opposite side in the room. If the result feels too stereo wide, drop the file into a mono export to compare. For most music it sounds correct once you adjust.
TikTok rejects my reversed audio with a length error
TikTok sounds must be under 60 seconds. Trim before reversing, then export. For Reels the limit is 90 seconds.
After reverse, the file size on export is much larger than the original
You are likely exporting WAV instead of matching the original codec. For MP3 input, export as MP3 at the same bitrate (check the original in File Info) to keep size close.
Why Use This Reverse Audio Online
- Instant reversal with zero quality loss - samples are reordered, not modified
- Reverse the whole file or just a selected region
- Works on mono, stereo, and multi-channel audio
- Combine with reverb, delay, or fade for advanced sound design
- All processing runs locally in your browser
Frequently Asked Questions
Does reversing change the audio quality?
No. Reversal reorders the samples without modifying them. The data is identical, just played in the opposite direction.
Can I reverse just a section of the track?
Yes. Select any region on the waveform and reverse only that section. The rest of the file stays unchanged.
How do I make a reverse reverb effect?
Reverse your audio, apply the Reverb effect with a long decay and high wet mix, then reverse the result again. The reverb tail now builds into each sound instead of trailing after it.
Can I undo the reversal?
Yes. Use Undo to revert. Or just reverse the audio again - reversing a reversed file gives you back the original.
How do I reverse audio on TikTok?
TikTok can only reverse video and audio together - it cannot reverse audio alone. To reverse just the audio, upload your file here, reverse it, export, then import the reversed audio into TikTok as a sound.
Can I create a reverse reverb effect step by step?
Yes. Reverse the audio first. Then apply the Reverb effect with a long decay and 100% wet mix. Then reverse the result again. The reverb tail now swells into each word instead of trailing after it. Align the result so the swell peaks right as the original sound starts.