A privacy-first image toolkit for Mac

Convert, compress, crop, watermark — and generate, upscale, cut out, or erase parts of images with on-device AI. No uploads. All inference runs locally on Apple silicon via MLX.

Current: v0.4 (pre-release)

OtterPix is in active development. Check back here for launch updates.

Everything you expect from a Mac image utility

Eight built-in tools, all offline, all free.

Format Conversion

PNG · JPEG · TIFF · BMP · HEIC · WebP · AVIF

Compression

JPEG quality, PNG re-encoding, WebP / AVIF presets

Rotation

Free angle or quick 90° flips

Resize

720p / 1080p / 4K presets or custom dimensions

Crop

Interactive canvas with draggable handles

Watermark

Text watermarks with font, color, opacity, angle

QR Code

Configurable error correction and size

PDF to Image

Render PDF pages to JPEG / PNG at any DPI

Pipeline

Chain operations into reusable presets, batch-process whole folders

On-device AI, no cloud round-trip

Every AI feature runs locally on Apple silicon via Apple's MLX framework. Weights are downloaded once and reused — no per-image API fees, no images leaving your Mac.

AI Image Generation

Flux 2 Klein 4B

Text-to-image with Flux 2 Klein 4B. Reference images supported for restyling and multi-image composition.

AI Upscale

Real-ESRGAN

4× super-resolution with Real-ESRGAN. Four variants: general, x4plus, anime, anime video.

AI Cutout

BiRefNet

Salient-object background removal with BiRefNet. Swin-T for speed, Swin-L for fine details on hair and complex edges.

AI Eraser

LaMa

Paint over unwanted objects, LaMa fills in the background. Iterative — paint, erase, paint more, erase more.

Pricing

Final pricing is being finalized — basic tools will always be free.

Free

Forever

All eight basic tools · Pipeline · Batch processing · Format conversions including HEIC / WebP / AVIF

Pro

Pricing TBD

Everything in Free, plus all on-device AI features: Generation, Upscale, Cutout, Eraser

FAQ

What image formats does OtterPix support?

Read and write: JPEG, PNG, TIFF, BMP, HEIC, WebP, AVIF. PDFs can be rendered to images at any DPI. Most operations preserve color profiles and EXIF orientation.

Does OtterPix upload my images or collect any data?

No. Every operation — including all AI features — runs locally on your Mac. OtterPix's sandbox entitlements grant network access only for downloading model weights from Hugging Face on first use of each AI feature, and for App Store subscription verification. There is no analytics SDK, no telemetry, no image upload.

Do the AI features need an internet connection?

Only for the one-time model download. After that, every AI feature works fully offline. Model sizes range from ~2.5 MB (smallest upscale variant) to ~6 GB (Flux 2 image generation). You choose which models to download from the AI settings panel.

Which AI features ship today, and what models do they use?

Four: AI Generation (Flux 2 Klein 4B, Apache 2.0), AI Upscale (Real-ESRGAN ×4), AI Cutout (BiRefNet, with Swin-T or Swin-L backbones), and AI Eraser (LaMa big-lama). All inference runs on MLX, accelerated by the Apple Neural Engine and GPU on Apple silicon.

What Mac do I need?

macOS 14 (Sonoma) or later, on an Apple silicon Mac (M1 or newer). Intel Macs are not supported because MLX targets the unified-memory architecture. For Flux 2 image generation we recommend 16 GB RAM or more.

Does OtterPix support batch processing?

Yes — the Pipeline feature lets you chain any combination of operations (convert, resize, crop, watermark, upscale, cut out…) into a single preset and run it across a whole folder of images.

How do I get notified at launch?

Check back at otterpix.app or write to hello@otterpix.app — we'll reply with TestFlight and App Store availability as soon as they're live.