Guides
Image tool guides & tutorials
Step-by-step tutorials for sprite sheets, long-image stitching, video frame extraction and more — all done locally in your browser.
How to Make a Sprite Sheet: A Complete Game-Asset Tutorial
A sprite sheet packs animation frames into one PNG so a game engine loads once and crops by coordinates. This tutorial uses an in-browser sprite editor — no install, no upload.
How to Stitch Screenshots into One Long Image: Chat Logs, Tutorials, Receipts
Merge several screenshots into one long image for chat logs, tutorial steps or order receipts. Pic Toolkit stitches locally — reorderable, controllable gaps, no upload.
How to Extract Frames from a Video: Reference Stills and Sprite-Sheet Source
Batch-extract a PNG frame sequence from video for animation reference, sprite-sheet source or key moments. Pic Toolkit exports locally by frame count or time range — no upload.
Convert HEIC to JPG on Windows without installing a converter
Create a compatible JPG from an iPhone HEIC photo in your browser, with checks for image quality, dimensions and information lost during export.
Reduce JPEG file size without blindly lowering quality
Separate pixel dimensions from compression quality and compare real output files before choosing a smaller JPEG.