Speed it up, slow it down, spin it in 8D, add bass or a mood — and download the finished track.
Add a song and SongFX switches lo-fi on right away: the track gets a little slower and lower, the top is muffled, and a sampler’s grain, tape wobble and vinyl crackle come in. One slider controls it all; download the whole track or just the part you need.
SongFX is a free online song effects editor: slowed + reverb, nightcore and sped up, 8D audio, bass boost, a retro sound, atmosphere and an equalizer. It all runs right in your browser, on a computer or a phone, with nothing to install and no sign-up.
Effects: Slowed + Reverb · Nightcore / Sped Up · 8D Audio · Bass Boost · Lo-fi
Tap the upload area or drop a file on it: MP3, WAV, FLAC, M4A or an MP4 video. From a video, the sound is used.
Each tab is a separate effect. The presets at the top work in one tap, the sliders below fine-tune it.
Press play: every change is heard instantly, no waiting. The Original button lets you compare with the source.
Download saves the processed track in the same format as your file (AAC, M4A, OGG and video sound as MP3 320). Need only a part, like the chorus for TikTok? Turn on Trim before downloading.
A slower, deeper version of the song with the echo of a big hall: the sound popular on TikTok and YouTube.
A faster, higher version of the song: nightcore and TikTok sped up.
Adds a deep sub-bass tuned to your track: SongFX finds where the song’s bass sits and boosts exactly that. The volume is matched, so you hear more bass, not just a louder song.
The sound circles slowly around your head, like in “8D audio”. Listen on headphones: on speakers the effect is barely there.
Adds atmosphere without breaking the track itself: echo, shimmer, stereo width and tone.
A cosy lo-fi sound: the track a little slower and lower, the top strongly muffled, the grain of an old sampler, tape wobble, vinyl crackle and a bit of room.
A five-band equalizer for your own tone, with presets: bass, voice, bright, soft.
The sound of old tape or vinyl: softened highs, warm saturation, a slight pitch wobble, crackle and a small room.
The Mix effects switch adds other effects on top of the chosen one: for example slowed + reverb with bass and 8D, or nightcore with atmosphere.
Saves only the part you need, with a smooth fade in and out: handy for TikTok, Reels and Shorts.
The volume slider on a computer changes only the listening level and does not affect the downloaded file.
Yes, completely free, with no sign-up and no watermarks.
No. All processing happens right in the browser on your device. Files are never sent to our or anyone else’s server: we never see or store them.
MP3, WAV and FLAC, plus M4A (AAC), OGG and MP4 video if your browser can open them. The result is saved in the format of your file; formats the browser cannot write are saved as MP3 320.
No, but tracks longer than 5 minutes put more load on your device: processing happens right on it, so a long track takes longer to save and uses more memory. The site warns you before opening such a track. On a slower phone it is better to cut out the part you need with Trim first.
On download, the whole track goes through the effect again and is encoded to the right format. On a computer that takes a few seconds, on a phone about 10–30 seconds for a three-minute song.
SongFX matches the loudness of the result to the original and gently smooths the loudest peaks, so there is no distortion. With echo and in 8D the track can be a little quieter than the original: that keeps the sound clean.
Open the Slowed + Reverb tab, pick “standard” (×0.85) and raise the reverb to 40–60 %. Listen, then press Download.
Open the Nightcore / Sped Up tab and pick a speed: ×1.15 is the usual TikTok sped up, ×1.25–1.35 is classic nightcore.
Yes. In 8D the sound moves from one ear to the other; on speakers or a phone speaker you can barely hear it.
Yes, on iPhone and Android in Safari, Chrome and other modern browsers. Saving takes longer on a phone than on a computer.
Turn on Trim in the Download section, frame the part you want on the waveform and press Download. The first 20 seconds are selected by default.
Yes. Turn on Mix effects and add Vibe, EQ, BASSify or 8D to the chosen effect, for example slowed + reverb + bass boosted + 8D.
SongFX is free. If it helped you, you can support the project on Ko-fi: the link is at the bottom of the page and appears after a download.