Webtoon Speech Bubble Generator
A free webtoon speech bubble generator built into the canvas. Drop rounded speech balloons, cloud thought bubbles, shout boxes and caption boxes onto your vertical-scroll webtoon panels, type the dialogue, aim the tail at the speaker, and it renders straight on the art. No Photoshop, no separate lettering app, no exporting.
Made with YarnSaga



Real output from YarnSaga — characters stay consistent across every panel
How it works
Use a panel you generated in a webtoon or manhwa style in YarnSaga, or upload your own episode artwork to the canvas editor.
Pick a bubble style — round speech balloon, spiky shout box, cloud thought bubble, or a caption box — and drop it on the panel.
Type the line, drag the bubble into place along the vertical panel, and aim the tail at the speaker. Resize the text to fit. Done.
What you get
Place bubbles anywhere along the tall webtoon canvas so dialogue flows naturally as readers scroll down.
Round speech balloons, jagged shout boxes, cloud thought bubbles and caption boxes — all included for episode lettering.
Point the tail at whoever is talking, move it, flip it, or hide it entirely for narration.
Comic-style fonts sized for legibility, so dialogue reads cleanly on phone-sized webtoon panels.
Bubbles sit on their own layer over the art — reposition or rewrite them anytime without touching the panel.
Bubbles bake into the exported image and the published episode — no separate file to merge.
Who uses this
Letter your episodes in the same place you make the panels — no round trip to a design app.
Ship dialogue-lettered episodes fast and publish each one with a shareable link.
Add balloons to vertical fan panels for a quick, shareable webtoon edit.
Common questions
Yes. You can place speech balloons, thought bubbles and captions anywhere along the tall vertical canvas, so dialogue flows naturally as readers scroll down the episode.
YarnSaga includes round speech balloons for dialogue, spiky "shout" boxes for action, cloud thought bubbles for inner monologue, and rectangular caption boxes for narration. You pick the type, drop it on the panel, and type your text.
Yes. Each speech balloon has a tail you can drag and aim at whoever is speaking. You can reposition or hide it — for example, removing the tail on a narration caption.
Yes. Upload your own episode artwork to the canvas and add bubbles to it, exactly the way you would on an AI-generated panel.
Yes. Adding speech bubbles is part of the free plan — no watermark and no separate lettering tool to buy.
Yes. Every story you publish gets a shareable link. For uploading to LINE Webtoon Canvas or Tapas, export the lettered pages and upload them manually.
Free to start. No drawing skills needed. Your characters stay consistent — automatically.
Start free