One small app, from the shoot to the post.

Select, Compose, Watermark and Export, on your computer. Here is each stage in the real app, with the CC0 sample photos it ships with.

Watch: you and your AI assistant

Music, no voice; the words are on screen. Full quality, 1080p (23 MB)

Select

Decide which frames make the cut. Each photo is in a post, a maybe, cut, or not picked yet, with the same keys every time: P, M, X.

What you cut stays in sight with its reason, so nothing good disappears quietly. Swap in the frame that was not picked, tag what is wrong, leave a note.

Select: photos marked in the post, maybe or cut, with the verdict panel beside them. — See the whole window: Select

Compose: the Board

Arrange the keepers into the running order of a post: what opens, which landscapes share a frame, which wide shot scrolls as a panorama.

The slide count stays in sight, since pairing two photos into one frame is what gets a long post under the limit. A project holds as many posts as you like.

The Board: a cover photo, a panorama split across slides 2 to 4, two coast photos stacked into one slide, a collage and a before/after. — See the whole window: the Board

Compose: one slide

Crop and zoom, collage layouts, separators and fades between panels, backgrounds and frames.

Draw a separator across the slide and it cuts the cells it crosses; soften it into a fade.

Edit view: a two-photo forest collage with a slanted separator selected, and the slide panel beside it. — See the whole window: one slide

Templates

Start a slide from a layout: stacks, side by side, a grid of four, one big and two small. Your photos stay in order; save your own layouts as templates.

The Template library showing stack and collage layouts filled with the slide's own photos. — See the whole window: Templates

Before and after

A wipe between two versions, exported as a short video (MP4, GIF or WebM). Choose the edge, the motion and the softness.

The MP4 is made by your computer's own encoder, or an FFmpeg you install.

The Before/after dialog: a wipe between two photos, with edge, motion and speed choices. — See the whole window: Before and after

EXIF cards

A card for the settings, camera and lens, read from the photo itself, the camera name cleaned up. Add lighting, extras and a credit line.

The EXIF card dialog: aperture f/6.3, shutter 1/320 s, ISO 400, 140 mm, Nikon Z50II, over a blurred photo. — See the whole window: EXIF cards

Watermark

Put your mark on one photo or a whole post. Nine-point placement or drag, and PicPrep picks the version of your logo that stays legible on each photo.

Sizes are measured on the visible logo, not the image file. Back up your marks to one file.

Watermark: a forest photo with the sample mark in the bottom-right corner and the placement controls. — See the whole window: Watermark

Export

A plan with its warnings before anything is written. Full resolution by default; smaller only when you pick a size or a platform preset, and never enlarged.

Exports are new files, beside your originals or in a folder you choose. Originals are never changed.

The Export dialog: the Instagram preset and a note for each slide that is smaller than the platform's size and is not enlarged. — See the whole window: Export

Your photos stay on your computer.

PicPrep uploads no photos, loads no remote fonts or scripts, and sends no telemetry. It works offline. The one thing that can leave is a bug report or idea you choose to send: you see everything in it first, and anything private is off until you tick it.

Its local server listens only on your own computer, refuses other websites, and serves only files from folders you opened. What PicPrep sends for your licence and updates is listed in the privacy notice.

Runs on

macOS, Windows and Linux. [System requirements: minimum macOS, Windows and Linux versions.]