99Labs

New in 1.4: Darkroom, a step-by-step timer for developing film. Mix your chemistry, adjust developer time to the water temperature, and count down in red on black.

99Labs is a small, quiet toolbox for photographers. Four tools, one clean design: no accounts, no ads, no tracking.

FRAME Put a border around your photos and export them ready to share. • Pick a ratio, border width, border color, corner radius and shadow • Aspect ratios 1:1, 4:5, 5:4, 3:4, 4:3, 3:2, 2:3, 16:9, 9:16, the original, or your own • Batch export to Photos • Every framed photo carries a small 99Labs mark in the bottom-right corner; the optional one-time purchase "Custom watermark" lets you move, resize or replace it

LIGHT METER Read the light with the camera and get an exposure. Set ISO and aperture, read the shutter speed. Includes the Sunny 16 rule for quick estimates in daylight.

SLICE Cut a photo into same-size tiles for a multi-image post on Instagram or RED (Xiaohongshu). The most common cut is two tiles side by side, which is the default; one tap gives you the 3 x 3 nine-square grid, or type your own rows and columns (up to 4 x 4) in Custom. Pick the tile ratio (1:1, 4:5 or 3:4), drag each photo to choose the crop, queue several photos, and save every tile to Photos in one go. Swipe through the post and the tiles join back into the original photo.

DARKROOM A step-by-step timer for developing film at home. • Templates for black and white, C-41 and E-6; edit, duplicate or build your own • Each step has a name and a time. Add, reorder and delete steps • A big countdown in red on black, easy on your eyes and safe for the darkroom. The screen stays on, and a sound tells you when a step ends • Black and white: enter your tank volume and the dilution (A+B or A:B) to see how much developer and water to mix • Black and white: set the temperature of the day, and the developer time is converted using the Ilford time/temperature compensation chart. It is a guide; always check your film and developer data sheets

WATERMARK Import your own transparent PNG, such as a signature or a studio mark, and place it on any slot. Drag, scale and rotate it; it is saved with the slot and drawn in the preview and in every export. Watermarks are part of the optional one-time purchase "Custom watermark". After the purchase, the 99Labs mark becomes a watermark like any other.

PRIVATE BY DESIGN No account, no ads, no tracking. Your photos never leave your device.