Visualize

Local · Zero upload

Lottie Animation Preview

Animation JSON · Instant playback · Local rendering

Lottie preview

Ready

Raw input

Parsed output

Fixed height; long code scrolls inside the panel

ABOUT

About Lottie Animation Preview

Import Lottie animation JSON and preview in the browser in real time—no After Effects or plugins.

Lottie brings motion from After Effects to Web and mobile, but JSON files aren't "visible." Local preview lets you sign off assets before integrating lottie-web and cut rework.

DEEP DIVE

Learn more about Lottie Animation Preview

Lottie is Airbnb's open animation format—JSON-described vector motion widely used on mobile and Web. You can't preview Lottie JSON in a code editor; usually you need After Effects + Bodymovin or LottieFiles online. JSONSort renders Lottie locally—paste JSON and it plays.

Great for frontend asset QA, checking whether Lottie JSON is corrupt, and quickly inspecting frame rate and layer structure.

Lottie JSON from Bodymovin includes layers, shapes, keyframes, and more. The preview uses lottie-web—behavior closely matches production; if preview fails, export settings or corrupt JSON are likely—not integration code.

FEATURES

Core capabilities

Instant playback

Paste Lottie JSON—auto-load and loop the animation.

File import

Drag-and-drop .json and .lottie files.

Local rendering

Animation JSON never uploads—preview confidential design motion locally.

Error feedback

Load failure message when JSON doesn't match Lottie schema.

Formatter integration

Validate JSON syntax first, then switch to Lottie preview.

Zero plugins

No AE or Lottie desktop client required.

.lottie archive

dotLottie format auto-extracts and renders.

Loop playback

Auto loop to check first/last frame continuity.

HOW TO USE

How to use

1
Paste Lottie JSON or upload .json/.lottie
2
Auto-play animation preview
3
Adjust and export
4
View refreshes on input changes—tweak JSON and observe structure
5
Screenshot or copy JSON snippets for docs and reviews

WORKFLOW

Typical workflow

End-to-end flow from import to export so teams use Lottie Animation Preview consistently.

Get Lottie JSON

Download from Figma/AE Bodymovin plugin or LottieFiles.

Import & preview

Drag .json / .lottie or paste JSON text.

QA motion

Check loop, size, and colors against the design spec.

Integrate

After sign-off, copy JSON into project assets.

USE CASES

Use cases

Frontend

Frontend developers

Verify designer Lottie assets play correctly.

Mobile

Mobile development

Preview JSON animation assets—confirm frame and size params.

Motion

Motion design

Quickly validate Bodymovin JSON completeness after export.

QA

Regression-test visual impact after Lottie asset updates.

Design

Design handoff

Designers self-check exported JSON before dev integration.

Performance

Performance tuning

While previewing, watch layer count and decide if motion needs simplification.

TIPS

Tips

Lottie JSON is often large—drag-and-drop import is more stable than paste.
On load failure, use the formatter to check JSON syntax first.
Preview area shows whether the loop is seamless or has visible frame jumps.
Pair with JSON mind map: mind map for layer structure, preview for actual motion.
dotLottie (.lottie) is compressed—the tool auto-extracts and renders.
Confirm in preview before integrating into lottie-web / lottie-react projects.
Preview lag may mean too many layers—ask design to simplify or merge shapes.
External image assets failing? Check CORS or switch to embedded base64.
Use with the formatter: validate JSON syntax before switching to Lottie mode.
Before integration, confirm frameRate doesn't conflict with project CSS animation.

LOCAL VS ONLINE

Local vs online tools

JSONSort stays purely frontend—this comparison shows why local tools fit dev data better.

Comparison

JSONSort (local)

Typical online tools

Data privacy

Fully local, zero upload

Most require server upload

Response speed

Milliseconds, no network latency

Affected by network and server load

Offline use

PWA offline supported

Usually requires internet

Sensitive data

JWT/config/logs handled with confidence

Leak risk

Ads & tracking

No ads, no data tracking

Most include ads or Analytics

File drag-and-drop

Import local files directly

Some tools limit upload size

Tool integration

19 tools on one page

Usually one site per tool

Open & transparent

Pure static pages—audit the source

Closed-source server, not auditable

TROUBLESHOOTING

Common pitfalls & fixes

Issues you may hit in practice and how to handle them—save time on trial and error.

Load failed

Tip:JSON syntax error or incompatible Lottie version—re-export from Bodymovin.

Images not showing

Tip:External URL blocked by CORS—use embedded assets instead.

Animation too fast/slow

Tip:Check fr (frame rate) and op/ip frame range in the JSON.

Blank preview, no error

Tip:May be an empty composition—confirm timeline content before AE export.

FAQ

Which Lottie versions are supported?

Mainstream Bodymovin JSON exports. Cutting-edge features may need a renderer update.

Can I pause or seek?

Auto loop only today. Playback controls may come later.

Does embedded-image Lottie work?

Yes for base64-embedded images. External URL refs may hit CORS limits.

Does preview match real devices?

lottie-web aligns closely with iOS/Android native Lottie; extreme expressions may differ slightly.

What if the file exceeds 1MB?

Worth trying anyway; for huge files use dotLottie compression or split animations.

Is data uploaded to a server?

No. All JSONSort tools run locally in your browser—your input is never sent to any backend.

Do I need to sign up or install anything?

No. Open the page and go—no account, no client download, PWA offline cache supported.

How large can files be?

Depends on browser memory; multi-MB data usually runs smoothly. Split very large files or use merge & clean first.