Trevni: Invert Photo Negatives

Trevni is a fast, precise tool for converting photo negatives into vivid, true-to-life images. Turn color and black-and-white film scans into positives with one tap, then fine-tune color balance, curves, exposure, and white balance. Automatic orange mask handling delivers accurate tones without complex editing. Batch processing, reusable presets, and before-after compare streamline film archiving and sharing. Works offline, supports RAW and high-resolution exports, and integrates smoothly into photo and productivity workflows, ideal for film scanning, photo negative inversion, color correction, and batch processing on mobile.