v1.0.0

What's New

FreeCCR 1.0 — the first stable release. A free, offline desktop app for converting and colour-correcting colour-negative film.

Key features:

• Physics-based negative conversion — models film's non-linear response and density range, not a naive 255−value invert.
• Two-point anchoring — sample the film's white and black references once, then convert a whole roll consistently; or use Auto frame detection for a fast first pass.
• Batch RAW + standard formats — load a whole folder at once (CR3/CR2/NEF/ARW/DNG, TIFF/JPEG/PNG).
• Full colour correction — temperature/tint, exposure/gain, brightness, gamma (with an optional hue-preserving mode), highlights/shadows, contrast, saturation, per-channel levels, and a Curves editor — with a live histogram and zoom.
• Crop & straighten, dust removal, camera profiles (ICC / DCP / IT8), and local (area) adjustments.
• Sync & copy/paste adjustments across a roll, plus optional OpenCL GPU acceleration.
• Completely offline and free (AGPL-3.0) — no activation, no watermark, no strings.

Install

Windows

Download the installer (FreeCCR_Install_*.exe) from the Assets below and run it.

macOS (Apple Silicon)

Download FreeCCR_macOS_*.zip from the Assets, unzip it, and move FreeCCR.app into your Applications folder.

⚠️ macOS may say the app is "damaged and can't be opened" — it isn't. FreeCCR isn't notarized by Apple, so Gatekeeper blocks unsigned downloads on first launch. Clear the quarantine flag once by running this in Terminal:

xattr -d com.apple.quarantine /Applications/FreeCCR.app

Then open the app normally.

Alternative: right-click the app → Open → Open. On macOS Sequoia (15), if no "Open" button appears, use the Terminal command above, or go to System Settings → Privacy & Security → Open Anyway.