Retro sound chips · 16 devices · Free in the browser

BOiNK SFX Synth app icon

Live in the browser

BOiNK SFX Synth

Turn any sound into a retro sound-chip sound effect.

Drop in a voice clip, a beep, a bang — anything — and BOiNK resynthesizes it the way a PC speaker, AdLib card, NES, C64 or Game Boy would have played it. Hear the copy next to the original, compare their spectrograms, then export it as WAV, MP3, FLAC or AAC.

Open in browser See the 16 devices

Free. Installable from your browser as an app. Your audio is processed on your device and never uploaded.

Not a bit-crusher. A patch, played by a chip.

Lo-fi filters just wreck audio. BOiNK analyses the sound once, boils it down to a small patch, and lets each emulated chip play that patch within its own hardware limits.

Analyse

One patch, any chip

  • Breaks the original into tones and noise bands
  • Auto model picks partials or harmonic pitch + color per sound
  • Typical result: a patch several times smaller than the source audio
  • Music mode for longer, melodic material

Play

Hardware limits are the point

  • Square-wave channels, FM operators, SID filters, wavetables — each device sounds like itself
  • Spectrogram of original vs copy, with a match score
  • One-tap A/B: Original, Copy, or A/B all
  • Switch the device and re-run to compare chips side by side

How it works

Three steps from clip to chip.

  1. 1

    Pick a device and your sounds

    Choose a sound chip, then load a demo file set or add your own files from your device.

  2. 2

    Synthesize

    Watch each sound go from before to after as BOiNK builds the patch. Cancel any time.

  3. 3

    Compare, then save

    Play the original against the copy, check the spectrograms, and save each result in the format you need.

16 emulated sound devices

From a single beeper to arcade boards and FM cards.

PC speaker Apple II speaker Atari 2600 (TIA) Commodore VIC-20 Commodore 64 (SID) Atari POKEY NES (2A03) Game Boy (DMG APU) Sega Genesis (YM2612 + PSG) Tandy 1000 / PCjr (SN76489) AY-3-8910 (MSX / CPC / Atari ST) Namco WSG (arcade) Ensoniq ES5503 (Apple IIGS) AdLib (OPL2 FM) Sound Blaster 16 (OPL3 FM) Dial Blaster 16 PCIe

App preview

Real screens from the app — pick a chip, synthesize, compare, export.

BOiNK SFX Synth Sounds screen with the NES device selected and a demo file set loaded
Sounds — pick a chip & files
The sound device menu listing Dial Blaster 16, AdLib, Sound Blaster 16, PC speaker and more
16 sound devices
Synthesizing dialog showing before and after spectrograms and a progress bar
Synthesizing — before & after
Output screen with original and copy spectrograms, match scores and A/B all button
Output — A/B & match score
Export drawer with format, channels, sample rate and MP3 encoder settings
Export settings

What you get

Chip-accurate sound

Sixteen devices, each limited like the real hardware — channel counts, waveforms, noise and FM operators included.

See what changed

Original and copy spectrograms side by side, plus a match score and a size comparison for the whole batch.

A/B everything

Play the original, play the copy, or run A/B all through the full list to audition a chip fast.

Deep export

WAV (PCM, IMA/MS ADPCM, A-law, µ-law, GSM 6.10), FLAC, MP3 (LAME) and AAC / M4A, with mono or stereo and 8–48 kHz sample rates.

Private by design

Everything is synthesized and encoded on your device. Your files are never uploaded.

Where you can use it

Runs in any modern browser, phone or desktop.

Live now

Web app

Open boinksfx.pages.dev and use your browser's Install app option to pin it to your home screen or desktop. No account, no download.

Make something go BOiNK

Free in the browser — pick a chip and hear it.

Open BOiNK SFX Synth