Updated Nov 6, 2026
Reverse voice generator
Reverse Voice Generator
This reverse voice generator plays your own recording backwards. Record a phrase or upload a clip: at 0% you get a clean reversal, same speed, same pitch, nothing added, ready for the reverse singing challenge. Raise the slider and the backwards voice sinks into a slow, echoing hall for backmasked horror. It all runs in your browser.
Record or drop a clip to make it scary
MP3, WAV, M4A, OGG or WebM · up to 3 minutes · 25 MB
Ready
Your voice · Reverse
Free · runs in your browser · nothing is uploaded
Script ideas
Phrases that come alive backwards
Reversal rewards crisp consonants and steady vowels: a hissed s swells in from nothing, a hard t becomes a sharp intake of air. Tap a card to load its setting into the reverse voice changer, read it aloud, play it back. The 0% cards suit the challenge; the higher ones, horror.
“Pickle sandwich, extra mustard, no crusts.”
About two seconds, every consonant crisp. Reverse at 0%: copy what you hear, record the copy, reverse that.
“Ten. Nine. Eight. Seven. Six. Five. Four. Three. Two. One. Ready or not.”
Leave a gap between numbers. At 0% the order flips too, so it plays back as a count up in a language nobody speaks.
“Hello, my name is (say your name), and I have always lived here.”
Bright and friendly. Hearing your own name backwards at 0% is stranger than it sounds.
“Shh. She sleeps. Six silent sisters sit beside her bed, and none of them is breathing.”
Lean on every s. At Reverse 30% each hiss swells out of nothing into the hall.
“Whatever you do, do not play this backwards. It only listens when you play it backwards.”
Low and calm. Reverse at 70% sinks it into a slow hall: the classic backmasked message.
“Hush now, little lantern. The night has eaten every star, and it is hungry still.”
Half-sung, soft and even. At Reverse 100% the vowels turn into a slow, wordless hymn.
Effect recipe
What the reverse voice effect does, from 0% up
The reverse voice generator opens on Reverse at 0%, a clean reversal. The player here uses the Undertaker preset; your clip runs through the same chain in your browser, and the WAV matches what you hear:
Undertaker
- 1
Flip it end to end
0%: samples in reverse orderThe clip is read from its last sample to its first. Word order flips, every word runs backwards, and fading tails become swells that stop dead.
- 2
Leave the clock alone
0%: 1.00×, 0 semitones, no tailNo slowdown, no pitch change, no reverb, and the file is exactly as long as your take, so reversing your copy lands back on real words.
- 3
Open the hall
above 0%: 3.5 s hall, wet 0.35–0.70, dry 0.8Leave 0% and a long hall arrives at wet 0.35, rising to 0.70 at full. It trails each reversed syllable: the words run back while the room rings forward.
- 4
Slow it down
speed 1 − 0.12 × intensityAt 50%: 0.94×, about 1.1 semitones lower. At 100%: 0.88×, about 2.2 lower, so a ten-second take runs about 11.4 seconds, plus a 1.2-second tail.
- 5
Catch the peaks
limiter −6 dB, 12:1Every setting ends at this limiter, so a shout won’t clip the WAV. Reverse that WAV again at 0% and your original take returns, slightly quieter.
How it works
How to use the reverse voice generator
- 1
Record or upload
Press Record and allow the mic (takes stop at 60 seconds), or upload a file to reverse audio online: MP3, WAV, M4A, OGG or WebM, up to 3 minutes and 25 MB. No mic? “Try a sample” lets you test the reverse voice generator on a dry read.
- 2
Play it backwards
Reverse loads at 0%. Press Play with effect and your reverse voice plays clean, at the same speed and pitch; drag the slider up for the hall, or pick Raw to hear the take the right way round.
- 3
Download the WAV
Download the reverse voice as a WAV for your editor, game or puzzle page. Upload it again and reverse it at 0% to get back to the start.
Use cases
Where a reverse voice earns its place
Reverse singing and speech challenges
Record a phrase, play it backwards, copy the sound aloud, record your copy with Record again and play that reversed. A new take replaces the clip, so download the first reverse voice WAV if you want to keep it.
Backmasked messages for horror
Backmasking hides a reverse voice message under a cursed tape, a séance scene or a game’s ending. At 60–100% the hall blurs it; flip it back and your words return slowed, swelling out of the room.
Reversed swells for sound design and trailers
It isn’t only for a reverse voice. Flip a door slam, a clap or a struck pot: the decay comes first and rises into a hard stop that lands on the cut. Add Echo first, then reverse that WAV, for a longer riser.
ARG and puzzle clues
Bury a reversed sentence in a voicemail or a hidden audio file. Keep the reverse voice at 0%, so solvers who flip it in any editor get clean words back.
Tips
Reverse voice tips for a cleaner take
- Keep challenge phrases short. A few seconds is easy to memorise backwards; a full sentence rarely is.
- Record in a quiet, soft room: room echo reverses into a swell before every word and smears what you’re copying.
- Over-articulate. Hard consonants become clear backwards landmarks; mumbled ones turn to mush.
- Start speaking right after you press Record and stop as soon as you finish, so the reverse voice begins on sound, not silence.
- Leave a breath between lines. A long exhale reversed swells in like a breath drawn the wrong way.
FAQ
Reverse voice FAQ
Reverse voice generator: record or upload a clip and hear a clean backwards voice at 0%, or a haunted hall above it. Free, in your browser, nothing uploaded.
Keep exploring
More scary voices
Say it backwards
Record one phrase at Reverse 0%, copy the backwards sound, then run your copy back through the reverse voice generator.