Sprite Sheet Slicer & Packer Live
Slice a sprite sheet into individual frames and pack frames into a contact-sheet atlas, in the browser. Per-frame PNG downloads. Your image never leaves your device.
Free game-dev browser tools
Small browser utilities: game-dev tools plus one site-health probe, all running entirely in your browser: no upload, no signup, no install. Honest status: 8 live tools (game-dev cards dated 2026-09-25; AEO probe per os/lines/aeo-geo-audits.md, EXPERIMENT since 2026-09-27; sprite frame counter graduated 2026-09-27 on REVIEW PASS; NPC + quest generator added 2026-10-04, FT-03; tape viewer added 2026-10-04, FT-02, free magnet of the Gameplay Data Kit).
Showing 8 of 8 tools (8 live).
Tool list
Sprite Frame Counter Live
Count sprite-sheet frames from sheet + frame size, estimate RGBA memory, and get Godot 4 / Unity / RPG Maker setup values, in the browser. Local PNG measuring, TXT + JSON downloads. Your image never leaves your device.
Palette Extractor Live
Pull the color palette out of a sprite or image, in the browser. Copy hex codes; download GIMP (.gpl), CSS, or TXT. For pixel artists who need the exact colors, fast.
Tileset Splitter & Converter Live
Split a tileset image into individual tiles and export TMX, TSX, JSON, and CSV manifests, in the browser.
AEO Visibility Readiness Checker Live
Paste any page's HTML and get 8 automatic on-page checks + a 4-point site checklist, in the browser. Honest limits: it never queries an AI engine — the offline half live scanners skip, with HE/RU/EN coverage.
RPG NPC + Quest Generator Live
Generate RPG NPCs (name, epithet, role, trait, secret) and quest hooks (task, place, twist, reward) from original word lists with a seeded engine — same seed, same batch. TXT + JSON export. No AI calls, nothing leaves your device.
Gameplay Tape Viewer Live
Drop a gameplay tape shard and read its state + action tables with a re-computed replay hash, in the browser. TXT + JSON receipt export. Your shard never leaves your device.
Retro Sound Maker Live
Generate 8-bit and 16-bit sound effects from 8 presets with sweep sliders, in the browser. Instant play, single WAV download, one-click full-set export. No DAW, no install.
Guides
Import a sprite sheet into Godot 4 (AnimatedSprite2D)
the 5-minute recipe (grid → Nearest filter → SpriteFrames) with a free frame calculator and import-checklist download.
Get a tileset PNG into Tiled + Godot 4 without blurry or missing tiles
the 8-minute recipe (exact tile grid → TSX/TMX in Tiled → Nearest import in Godot 4) with a free tile-grid calculator and checklist download.
Match sound effects to pixel-art sprites
the 10-minute recipe (theme-to-genre pairing table → WAV for desktop / MP3 for web → one-shots plus one quiet ambient bed) with a free pairing picker and wiring-checklist download.
Add retro SFX to Godot 4 without a DAW
the 10-minute recipe (pick jump/pickup/laser/explosion sounds by waveform shape → right format per build → AudioStreamPlayers with bus levels) with a free format planner and checklist download.
Dress a game level for fall in one evening
the 30-minute recipe (porch anchor → fence-and-garden line → orchard with leaf cover and warm light: 1 unit = 1 m, base-center pivots, LOD0–LOD2 chain) with a free scene-budget planner and checklist download.
Dress a game level for spring in one evening
the 30-minute recipe (blossom canopy + beds → fence-and-trellis line with green filler → fountain anchor with morning light: 1 unit = 1 m, base-center pivots, LOD0–LOD2 chain) with a free garden-budget planner and checklist download.
Make 8-direction character animation read clearly
the 10-minute recipe (8 labeled facing rows S–SW in 64×64 cells → one readable hit frame → char_action_dir clip names for Godot 4, Unity or RPG Maker) with a free clip-name calculator and checklist download.
Check any 8-direction sci-fi sprite pack in 10 seconds
the buyer-side check (10-second grid check → playable-demo test → 64×64 slice recipe) with a free clip-name helper, a live canvas preview of the real marine walk sheet, and a free marine walk+idle sample download (2 sheets + 48 frames, byte-identical to Sci-Fi Crew Vol 2).
Roman soldier sprites that read in 8 directions
the buyer-side check on a hard case (hastatus vs centurion vs archer at 64px: 10-second grid check → playable-demo test → 64×64 slice recipe for Godot 4, Unity or RPG Maker) with a free Roman clip-name calculator and a free hastatus walk+idle sample (2 sheets + 48 frames, byte-identical to Roman Legion Vol 3).
Medieval knight sprites that read in 8 directions
the buyer-side check on a hard case (knight vs footman vs archer at 64px: 10-second grid check → playable-demo test → 64×64 slice recipe for Godot 4, Unity or RPG Maker) with a free medieval clip-name calculator, a live canvas preview of the real knight walk sheet, and a free knight walk+idle sample (2 sheets + 48 frames, byte-identical to Medieval Warriors Vol 4).
Import a bought tileset into RPG Maker MZ/MV without the corrupted look
the 30-minute recipe (sort 16/32/48px → category+label rename → shadow-free floors → $! charsets → exact 768×576 autotiles → Database import) with a free tile-size sorter, import-checklist and rename-map sample downloads.
Dungeon room that reads intentional tonight
the 15-minute recipe (open the 8×8 Tiled demo room → one-palette check across sprites, tiles and UI → wire one sprite+tile+SFX pairing) with a free pairing picker and a free Vol 0 sample download (1 slime + 2 tiles + 5 SFX + 1 panel, byte-identical to Theme Kit Vol 1).
Fix dungeon autotile outer corners + mixed 16/32px sizes
the 10-minute recipe (sort 16px ground from 32px props → 16-to-47 quadrant-composite corner fill → per-layer sizes as data for Tiled 1.10, Godot 4 and Unity) with a free blob-mask picker and a free Vol 0 blob-base sample download (16 tiles + .tsj + corner guide).
Game UI panels that stretch clean
the 15-minute recipe (9-slice stretch check: minimum size is twice the border → one-file Godot 4 theme skin → Unity Full-Rect borders) with a free size checker and a free Vol 0 HUD + button sample download (6 PNG + theme snippet, byte-identical to Game UI Kit Vol 1).
Fix overworld autotile shoreline corners + mixed 16/32px sizes
the 10-minute recipe (sort 16px grass and grove from 32px features → 16-to-47 quadrant-composite shore fill → per-layer sizes as data for Tiled 1.10, Godot 4 and Unity) with a free blob-mask picker and a free Vol 0 blob-base sample download (16 tiles + .tsj + corner guide).
Hub FAQ
Which tools work right now?
Eight: the sprite frame counter, the retro sound maker, the sprite sheet slicer, the palette extractor, the tileset splitter, the RPG NPC + quest generator (first creative generator, idea 40, added 2026-10-04), the gameplay tape viewer (free magnet of the Gameplay Data Kit, added 2026-10-04), and the AEO visibility readiness checker (an off-theme demand probe for the AEO/GEO audits line — EXPERIMENT since 2026-09-27, review round r135). Each page runs its tool above the fold with a demo input so you can verify it instantly.
Will the tools upload my files?
No. Lane rule: every tool on this hub runs 100% in the visitor's browser — no server, no paid API, no account. The pilot checks the browser network log for uploads before any tool ships.
Are there any planned-but-unbuilt tools?
No. Every card on this page is a live, working tool — no placeholder links are invented. No keyword-variant pages exist.
When do ads appear?
Only after AdSense approval. Until then the slots stay empty and this hub earns nothing.