slicerflowSequence diagram GIF generator
Sequence diagram GIF generator

Free sequence diagram
GIF generator

Turn a sequence diagram into an animated GIF. List your actors, write one line per message, and slicerflow draws the lifelines and plays each message back in order — then exports a GIF, PNG or JPEG.

No account · no install · runs in your browser · MIT open source

# one line per message — animated in order
title: Login Flow
sequence:
  actors: [user, app, api, db]
  steps:
    - "user -> app: click login"
    - "app -> api: POST /login"
    - "api -> db: SELECT user"
    - "db --> api: row"
    - "api --> app: 200 + token"
    - "app --> user: welcome!"

Paste this in the studio's Code tab → Export → GIF.

How to make a sequence diagram GIF

Describe the conversation once and slicerflow turns it into an animated, easy-to-follow exchange.

List the actors

Name the participants — user, app, api, db — and slicerflow draws a lifeline for each.

Write the messages

One line per message, like user -> api: login. Solid for calls, dashed for replies.

Play it back

Messages reveal in order down the lifelines, so the exchange reads step by step.

Export the GIF

Export → GIF for the animation, or PNG / JPEG for a still.

Why slicerflow for sequence diagrams

Other diagram GIF generators

Sequence diagram GIF — FAQ

How do I animate a sequence diagram as a GIF?

List your actors and write one line per message (for example user -> api: login). Each message reveals in order along the lifelines; then Export → GIF, PNG or JPEG.

Can I import a mermaid sequenceDiagram?

Yes. Paste mermaid sequenceDiagram syntax into Import and slicerflow converts it into an animated sequence diagram you can export as a GIF.

Is it free?

Yes — slicerflow is free and open source, needs no account, and runs entirely in your browser.

Do the messages animate in order?

Yes. Messages play back one at a time down the lifelines, so the exchange reads like a story instead of a static wall of arrows.

Animate your message flow

Write the messages, play them back, and export a GIF — free.