ThumbBlitz
Free browser-based Roblox thumbnail maker with no sign-up, no watermark, no AI generation
ThumbBlitz is a free browser-based editor that transforms Roblox gameplay screenshots into 1920×1080 thumbnails by adding bold text, stickers and backdrops
About this launch
ThumbBlitz is a free thumbnail maker that runs entirely in your browser. You upload a screenshot you already have, add a headline and stickers, and export the image at the size a game platform expects. There is no account system and no watermark.
The tool puts text and stickers on your picture at the right dimensions for Roblox (1920×1080), YouTube (1280×720), or game icons (512×512). It loads your screenshot locally—the file is never sent to a server—renders headline text with an outline and shadow, adds draggable stickers, and exports as a clean PNG. The free plan allows three watermark-free exports a day; the Pro plan removes the daily limit and exports every size at once.
What it does
- Upload and edit screenshots locally in browser without uploading to server
- Add bold headline text with outline and shadow effects
- Drag-and-drop sticker overlay system
- Export at multiple sizes: 1920×1080, 1280×720, 512×512
- 8 headline text styles and 38 backdrop presets
- Support for PNG, JPG and WEBP file formats
- Export as clean PNG with no watermark or branding
- Pro plan enables batch export of all sizes in one click
- 22 free template presets for quick start
Pricing
Free: 3 watermark-free exports a day, no account required. Pro: $4.99/month or $29/year (or $49 lifetime) for unlimited exports and batch export of all sizes at once.
Shopper questions
Is ThumbBlitz free to use?
Yes. Every style, sticker and export size is available with no account and no credit card, and you get three watermark-free exports a day. Pro ($4.99/month or $29/year) removes the daily limit and exports every size at once.
Do downloaded thumbnails have a watermark?
No. Every export—1920×1080, 1280×720 or 512×512—downloads as a clean PNG with no watermark, logo or badge stamped on it.
Do you upload my screenshot to a server?
No. The file is read with a local browser API and drawn onto an on-device canvas. It is never sent anywhere.
Is this an AI thumbnail generator?
No. It is a layout editor: you bring the screenshot, it handles typography and stickers. Nothing is synthesised, so the result is always what you saw.
What sizes does it export?
1920×1080 by default for Roblox game thumbnails. You can also export at 1280×720 for YouTube thumbnails or 512×512 for a game icon without recomposing.
ThumbBlitz has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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