Tol.
macOS · Lottie preview

Preview exactly.
Hand off confidently.

Tol. renders your Lottie animation inside accurate mobile device frames — correct density, safe areas, and proportions. See exactly what users see before a single developer opens Xcode.

Download for MacmacOS 13+
00:01.23 / 00:04.001.0×
iPhone 15 Pro
@3x · 460 ppi
safe area ✓
Features

Precision tools for motion designers.

Accurate frames

Every pixel placed correctly.

iPhone 15 Pro. Pixel 8. Dynamic Island, notch, safe areas, status bar — rendered at the exact screen density your users see. No guessing, no approximations.

density @1x · @2x · @3x
Instant preview

Drop a file. See the result.

Drag your Lottie JSON onto Tol. and playback begins in under a second. No project setup, no simulator boot, no waiting for a build.

< 1s · no config
Playback control

Scrub. Loop. Speed.

Play, pause, scrub to any frame, and adjust speed from 0.25× to 2×. Catch frame drops and timing issues before they reach a developer.

0.25× – 2× · loop
Handoff confidence

No more surprises at QA.

The preview you see in Tol. is what developers and QA teams will see on a real device. Ship the animation with confidence, not apology.

trusted output
1:1
pixel density match to production
< 1s
to first frame from file drop
0 px
safe-area guesswork at handoff

"The preview you see in Tol. is what developers and QA will see on a real device. That's the whole idea."

Design principle · Accuracy over approximation

How it works

Three steps. No setup.

01

Open a Lottie file

Drag-and-drop your .json onto the app window or use File → Open. Tol. accepts any valid Lottie JSON.

02

Choose a device frame

Pick from iPhone 15 Pro, iPhone SE, Pixel 8, and more. Screen density and safe areas update instantly.

03

Preview and hand off

Scrub, loop, and adjust speed. Screenshot the frame or export a reference clip. Then hand off with confidence.

Pricing

One purchase. Yours forever.

Free trial
$0

Try every feature. Time-limited trial so you can see exactly what you're buying.

  • ✓All device frames
  • ✓Full playback controls
  • ✓Time-limited access
Start free trial
Full license
$29

One-time purchase. No subscription. All future updates for this major version included.

  • ✓All device frames
  • ✓Full playback controls
  • ✓Lifetime license
  • ✓Future v1.x updates free
Buy Tol.

macOS 13 Ventura or later · Apple Silicon & Intel