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BrushLLM
Desktop app · Free + pay-per-AI

BrushLLM Image Studio —Local-first AI image toolbox

A free desktop image toolbox. Everyday edits — convert, compress, crop, watermark, EXIF — run entirely on your device; AI features like background removal and generative fill route through the BrushLLM gateway, billed per image.

macOS (Apple Silicon) · Windows 11 (x64 / ARM64)

BrushLLM Image Studio

BrushLLM Image Studio interface

Every local tool is free and runs entirely on your device — Rust engine, no uploads. AI features call the same BrushLLM API that powers the rest of the platform, billed per image at published rates.

Local tools — free, offline, private

Convert & compress

8 input formats to 8 output formats (including AVIF and WebP), with Lanczos resampling and quality control.

Resize, crop & rotate

Batch-friendly geometry tools with precise pixel dimensions and aspect presets.

Watermarks & annotation

Text and image watermarks, arrows, boxes and freehand annotation for screenshots and docs.

EXIF view, edit & strip

Inspect full metadata, rewrite fields, or scrub location and camera data before sharing.

Stitch, mosaic & shadows

Combine images into grids, pixelate regions, add rounded corners and drop shadows.

Color tools

Brightness, contrast and saturation, color replacement, and a magnifying color picker.

AI tools — powered by the BrushLLM gateway

Generate images

Text-to-image with GPT-Image — billed per generated image, no subscription.

Remove backgrounds

One-click cutouts with clean edges, straight from your desktop.

Remove objects & watermarks

Select a region and describe what should disappear — inpainting fills it in.

Generative fill

Expand, replace or swap content with optional reference images (e.g. person swap).

Restyle

Repaint an image in a new style while keeping composition and identity.

Your key, your quota

API key lives in the OS keychain; each key carries its own spend quota from the console.

Open source, honest software

Source code, issues and releases live on GitHub. No telemetry, no accounts, no ads.

Browse the image models behind the AI tools