dotLottie Packer.

Pack Lottie JSON into a .lottie archive, slim it down on the way, and play the packed result before you ship it. Everything runs in your browser; no file leaves this page.

.json→.lottie·.lottie→.json

Animations

Step 1 · source

Drop .json or .lottie files or click to choose · several JSON files become one multi-animation .lottie

Pack options

Step 2 · tune

dotLottie format

Move embedded images into the archiveBase64 images become real files, which drops the ~33% base64 overhead.

Images

Strip editor metadataDrops names on paths, fills and transforms, hidden=false flags and default blend modes. Layer and group names stay, so keypaths keep working. Skipped for files with expressions.

Decimal precision

Manifest playback defaults (v1)

Loop Autoplay Speed

Players that read the manifest use these when your code doesn't set them.

Packed file

Source JSON–

–

.lottie–

Animation JSON Images sizes before zip compression

Playground

.lottie round-trip

Frame

0 / 0 f
0.00s

Speed Renderer Loop Reverse

The diamonds on the timeline mark keyframe times in the root composition. Preview uses lottie-web; native players (lottie-ios, lottie-android) can differ on features flagged below.

dotLottie Packer.

Animations

Pack options

Packed file

Playground

Inspector

Mobile performance checks