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Sprite Sheet Builder
Free browser sprite sheet maker for game devs
Sprite Sheet Builder is a free browser-only sprite sheet maker for 2D game developers. Pack frames into a transparent sheet, split a sheet by grid or transparent-region detection, convert GIFs to sheets and back, and preview animations at 1-30 FPS. Exports PNG plus JSON or XML for Unity, Godot, Phaser and FNF. Files are processed locally and never uploaded; no sign-up.
Hi Product Hunt — I built Sprite Sheet Builder because every sprite-sheet tool I tried either wanted an upload, an install, or an account for something my laptop can do in a canvas.
Pack frames into one transparent sheet (grid or auto-pack, with padding/spacing and a 1–30 FPS preview), split an existing sheet back into frames by grid or transparent-region detection, convert GIFs to sheets and back, and export engine-ready metadata: Phaser/TexturePacker JSON, Unity's importer bundle, a Godot `.tres` SpriteFrames resource, and Sparrow XML for the Flixel family. The FNF generator groups actions and writes Sparrow XML plus a Psych Engine character JSON in one ZIP.
Everything is client-side — files never leave the browser, and the free path needs no sign-up. There is an AI sprite generator on the roadmap; it is not on sale yet, so today the tool is simply free.
Would love feedback from anyone who has fought with atlas metadata by hand.
About Sprite Sheet Builder on Product Hunt
“Free browser sprite sheet maker for game devs”
Sprite Sheet Builder was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #30 on the daily leaderboard. Sprite Sheet Builder is a free browser-only sprite sheet maker for 2D game developers. Pack frames into a transparent sheet, split a sheet by grid or transparent-region detection, convert GIFs to sheets and back, and preview animations at 1-30 FPS. Exports PNG plus JSON or XML for Unity, Godot, Phaser and FNF. Files are processed locally and never uploaded; no sign-up.
On the analytics side, Sprite Sheet Builder competes within Design Tools, Developer Tools and Games — topics that collectively have 882.3k followers on Product Hunt. The dashboard above tracks how Sprite Sheet Builder performed against the three products that launched closest to it on the same day.
Who hunted Sprite Sheet Builder?
Sprite Sheet Builder was hunted by Sprite Sheet Builder. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Sprite Sheet Builder including community comment highlights and product details, visit the product overview.
Sprite Sheet Builder