Pixel-art-as-a-service · v1

Turn any image into pixel art
via one HTTP call.

Fixel is a fast quantization + retrace API. Drop an image, pick a palette size, get back crisp pixel-art PNGs. Free demo on this page, instant API keys, pay-as-you-go.

Sign in / sign up — free Try the live demo ↓
no card required · keys revocable · usage metered per pixel

Live demo

Drop an image (or click an example below), drag the slider, watch the API quantize it. Same engine as the paid endpoint, just hard-capped at 768×768.

12

What's in the box

A small, well-tuned core. Two endpoints. Zero ML rabbit holes.

/api/v1/quantize

Reduce any image to N colors. Three engines (proximity, simple, flood-fill), all four perceptual color metrics including ΔE2000.

/api/v1/retrace

Walk back the JPEG ghosts: detect lossy edges, snap nearby colors, downscale to the natural pixel grid. Great for crusty source art.

Real auth, real metering

Bearer-token API keys, per-account rate limits and quotas, per-pixel pricing, top-ups via Stripe Checkout, billing portal for invoices.

Made for batch jobs

Stateless image-in / image-out — no async polling, no S3 round-trips. Just POST the bytes, get a PNG back.

Edge-deployed

Runs as a Cloudflare Worker with WASM-compiled Rust. Cold start in ~50 ms, p99 well under a second for ≤1 MP inputs.

Predictable pricing

Pay per pixel processed, not per request. Or flip your account to flat per-call. No tiers, no seats, no surprises.

Two-minute integration

Mint a key in the dashboard, then:

curl
JavaScript
Python
# quantize ./photo.jpg down to 16 colors
curl https://api.fixel.bitgate.dev/api/v1/quantize?colors=16 \
  -H 'Authorization: Bearer fxl_live_…' \
  --data-binary @photo.jpg \
  -o photo-pixel.png

Pricing

No subscriptions. Buy a credit pack, drain it whenever. Stripe handles tax in 80+ countries.

Demo

Free / no card
  • 30 calls / 10 min / IP
  • ≤ 768×768 inputs
  • Quantize only, fixed engine
  • Right here on this page
Use the demo above

Starter pack

$10 / one-off
  • $10 of credits applied instantly
  • Per-pixel metering · or flip to flat
  • All engines + retrace
  • Stripe Checkout (tax included)
Sign in to top up →

Volume

Talk to us
  • Higher rate limits
  • Custom price-per-pixel
  • Dedicated support thread
  • Invoiced quarterly
Email us