Can Unity import a JSON atlas?

Not out of the box. Unity slices sprites in its own Sprite Editor and does not read TexturePacker-style JSON without a third-party importer. That is why the Unity path here is a clean uniform PNG plus Grid By Cell Size, which needs no plugins at all.

Why is my pixel art blurry in Unity?

Filter Mode is still on Bilinear. Select the texture, set Filter Mode to Point (no filter) and Compression to None, then hit Apply. This is the single most common Unity pixel art problem.

What padding should I export with?

Two pixels is a safe default. It stops neighbouring frames bleeding into each other when the texture is filtered or scaled. Whatever you pick, enter the same value in the Sprite Editor Padding field.

Does it work with Unity 6?

Yes. The Sprite Editor slicing workflow is unchanged across Unity 2019 through Unity 6, and a PNG is a PNG.

UnityPNG grid workflow

Sprite Sheet Generator for Unity

Pack your frames into an evenly spaced PNG, then slice it with Grid By Cell Size in the Sprite Editor. Free, browser-based, no Asset Store package.

A sprite sheet exported as a uniform PNG grid, next to the settings it needs in Unity

What you export

Format menu

PNG

Uniform PNG grid

Unity has no import path for third-party frame data, so the sheet itself carries the layout. Export a PNG where every cell is the same size and the spacing is consistent, and Unity's Grid By Cell Size slicer reproduces your frames exactly. Note the cell width, cell height, and padding shown in the editor before you export, because you type those three numbers into the Sprite Editor.

Step by step

Getting the sheet into Unity

1
Export the PNG
Arrange your frames, keep the grid uniform, and export as PNG. Write down the cell size and padding.
2
Set Sprite Mode to Multiple
Drop the PNG into your project, select it, and in the Inspector set Sprite Mode to Multiple. This is what tells Unity the file holds many frames.
3
Kill the filtering
Still in the Inspector, set Filter Mode to Point (no filter) and Compression to None. Skip this and your pixel art comes in blurry.
4
Slice on the grid
Open Sprite Editor, choose Slice > Grid By Cell Size, enter your cell width and height, set Padding to your gutter, then Slice and Apply.
5
Make the animation
Select the sliced sub-sprites in the Project window and drag them together into the Scene. Unity offers to build an Animation Clip and Animator Controller. Adjust the clip Samples value to change the frame rate.

Cheat sheet

Setting	Unity value
Slice mode	Grid By Cell Size
Sprite Mode	Multiple
Filter Mode	Point (no filter)
Compression	None
Padding field	Your export gutter, in pixels

Built for the workflow

Uniform cells by default

Every frame lands in an identically sized cell, which is the one thing Grid By Cell Size needs to slice cleanly.

Padding you control

Set the gutter yourself and type the same number into the Sprite Editor Padding field. No guessing, no drifting frames.

Check timing first

Preview the animation at your target FPS in the browser before you build a single Animation Clip.

Straight PNG output

No proprietary container, no importer to install. Drop the file in Assets and Unity picks it up.

Unity FAQ

Want the long version? Read the engine import guide, or see every export format.

Other engines

Godot Phaser PixiJS GameMaker Construct 3 Defold Tiled FNF & Sparrow

Export for Unity

Pack your frames in the browser. What you walk away with: Uniform PNG grid, ready for Unity.

Open the editor All engines

Sprite Sheet Generator for Unity

Getting the sheet into Unity

Export the PNG

Set Sprite Mode to Multiple

Kill the filtering

Slice on the grid

Make the animation