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nanophage · media destruction

Batch image destruction. Real compression, real glitches, real byte-level audio DSP — no CSS filters, no shaders. Everything operates on actual pixel and byte data.

runs in your browser · nothing uploaded

Input

Drop images

or click to browse · jpg, png, webp, gif

Audio input

Lower the audio bitrate of an MP4. The video stays untouched.

Drop MP4 files

or click to browse · mp4, mov, m4v, m4a

Audio bitrate

Target bitrate128 kbps

Lower = smaller audio track, more compression.

Advanced

Codec

Channels

Sample rate

Optimise for web playback

Process

Engine loads on first file.

Compression

Downscale 25%

Smaller = chunkier blocks.

JPEG quality 12

Lower = heavier artifacts, more color bleed.

Encode passes 3

Generations of JPEG encode/decode loss.

Advanced

Smooth downscale Smooth upscale 4:2:0 chroma subsample

Filename suffix

Process

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Effects · applied in order

Advanced

Databend (byte corruption) ›

JPEG quality70

Re-encodes to JPEG at this quality before flipping bytes.

Corruption0.05%

Fraction of scan-data bytes to flip. Skips 0xFF so markers stay valid.

Seed Lock

Seed re-rolls after each run unless locked.

Bit crush ›

Red bits3

Green bits3

Blue bits3

Masks low-order bits per channel. 8 = no change, 1 = two levels per channel.

Pixel sort ›

Direction

Threshold0.30

Only pixels brighter than this get sorted.

Invert (sort dark pixels instead) Sort bright → dark

Scanline offset ›

Amplitude20

Max horizontal displacement, in pixels.

Wavelength40

Sine wavelength in rows. Combined with noise.

Noise0.50

Share of amplitude driven by noise vs sine.

Seed Lock

Echo ›

Offset X12

Offset Y0

Echoes3

Decay0.55

Per-echo opacity multiplier.

Chroma shift ›

Subsample4

YCbCr chroma downsample factor. 1 = none.

Cb shift X6

Cr shift X-6

Cb shift Y0

Cr shift Y0

Bitplane isolate ›

Bit0

0 = least-significant bit, 7 = most-significant.

Mode

Isolate shows only that bit. XOR flips it in place.

Dimension lie ›

Width offset-7

Rewrites the JPEG SOF0 width. Causes a diagonal tear on decode.

Quality80

Process

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Pipeline · pedal-chain order

Input is still images — same queue, same output. The trick: your image's pixel bytes are fed through real audio DSP as if they were sound samples — bitcrush, distortion, chorus, delay, reverb — and then written back as pixels. Nothing plays out loud. The effects below are the same ones you'd find on a guitar pedal or mixing board, but the "audio" they process is your image.

Bitcrush ›

Bit depth4

Lower = fewer sample levels. 16 ≈ no change.

Sample rate50

Percent of full rate — holds each sample for 100/N reads.

Distortion ›

Drive12 dB

Shape

Soft = tanh, Hard = clip, Fold = wave-fold.

Mix1.00

Chorus ›

Depth5 ms

Rate1.5 Hz

Mix0.50

Delay ›

Time80 ms

Feedback0.40

Mix0.35

Reverb ›

Size1.00

Scales the Schroeder comb/all-pass delay lengths.

Damping0.50

One-pole low-pass inside each comb.

Mix0.30

Process

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Dither

Reduces the image to a small palette by quantizing each pixel, then spreading the quantization error through the image as a pattern — the same math behind old Mac, Game Boy, and newspaper print looks. Real per-pixel error diffusion; no filters.

Palette

The set of colors each pixel gets snapped to.

Algorithm

How the quantization error is distributed.

Pixel scale 1×

Pre-downscale then upscale with nearest-neighbor. > 1 = chunky pixel-art look.

Dither strength 100%

How much error to propagate. 0% = no dither. > 100% = overshoots, more grit.

Threshold bias 0

Pushes every pixel brighter (+) or darker (−) before snapping.

Serpentine scan alternate row direction

Process

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Frequency domain

Runs a 2D Fast Fourier Transform on each color channel, lets you surgically modify the frequency spectrum, then runs the inverse FFT back. Low frequencies = smooth gradients and broad shapes; high frequencies = edges and fine detail. Image is padded to the nearest power of two and cropped back on output.

Frequency filter ›

Mode

Cutoff / center25%

Frequency radius as % of Nyquist. Low-pass keeps inside this, high-pass keeps outside.

Band width15%

Only used by band-pass / band-stop: the ring's thickness around the center.

Edge softness10%

0 = hard brick-wall cutoff (rings harder), 100 = soft gaussian roll-off.

Phase scramble ›

Amount50%

Randomizes phase while preserving magnitude. 100% = keeps the image's "texture" but destroys all spatial structure.

Seed

Magnitude shape ›

Exponent1.00

Raises each magnitude to this power. < 1 = compress (boost weak frequencies, murky/hazy). > 1 = expand (sharpen, posterize the spectrum).

Tilt0

Slopes the spectrum: negative = boost low freqs (softer), positive = boost high freqs (crunchier).

Spectral noise ›

Amount10%

Adds complex noise to the spectrum. Low amounts = subtle grain; high = ghostly interference patterns.

Seed

Process

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Video input

Load a video. Frames stream through a hardware-accelerated decoder, each runs through one of the destruction tabs, then re-encodes into an MP4 with the original audio. MP4 inputs use a streaming WebCodecs pipeline (fast, low memory). WebM/MOV/etc. fall back to per-frame seeking.

Drop a video

mp4 (recommended) · webm · mov

Effect

Apply

Uses the current settings from that tab.

Video frames run through the Compress tab's current settings. Edit settings →

Process

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Requires Chrome/Edge 94+, Safari 16+, or Firefox 130+ for WebCodecs. The encoder probes for whatever H.264 / H.265 / VP9 / AV1 variant your browser supports, and audio is re-encoded as AAC or Opus.

Tile pool

Source

Photos: Wikimedia search. Emojis: Apple PNGs via emojicdn.elk.sh.

Keyword(s) comma-separated

Pulled live from Wikimedia Commons. Variety helps.

Pool size 800

Number of photos to fetch and analyze.

Mosaic

Tiles wide 110

Density of the grid. Higher = more detail.

Tile repeats

How aggressively to avoid reusing the same tile nearby.

Process

Audio preview

No file selected

Source

Select a file from the queue.

Shrunk

Shrink the audio to hear the output.

Video is copied unchanged. Only the audio is re-encoded.

Queue

0 files

Drop MP4 files above to add them to the queue.

Processing log

Preview

No file selected

Source

Select a file from the queue.

Crushed

Run the crusher to see output.

Hold Space to compare against source.

Queue

0 files

Drop images above to add them to the queue.

Video preview

No video loaded

Source frame

Load a video to begin.

Processed frame

Press Preview this frame to process the current frame.

0.000 / 0.000

frame –/–

Output

Processed MP4 will appear here.

Mosaic viewer

—

No mosaic yet Drop an image, pick keywords, build.

Drag to pan · scroll to zoom · click a tile for its Wikimedia source.

nanophage 0 files · 0 B

Variations

Click one to apply its seeds.