Reddit Banner Maker
ThumbBlox is a Reddit banner maker for moderators and profile owners who want to turn a photo or a description into a header. The photo editor exports watermark-free PNGs for $0 without an account. AI credit packs start at $2.99, with 0 free signup credits. Choose a 1920×384 community banner, a 1080×128 mobile banner or a 2048×409 profile banner before downloading.
Example preview
1920 × 384 PNG
The dashed box marks a suggested area for lettering. Device previews approximate the crop; guides and the avatar stay out of your PNG.
How do I make a Reddit banner from a photo?
Open the Reddit banner resizer in Crop a photo, then choose where the image will appear. A subreddit can have separate desktop and mobile banners. A personal profile has its own header. Move the crop until the subject is visible, add your title and export the PNG. The editor keeps the original proportions, so a round object stays round in the finished banner.
- Choose a JPG, PNG or WebP. Select Community, Mobile or Profile.
- Switch between the desktop and phone previews. Adjust the horizontal and vertical crop of your photo.
- Download the PNG. For a community, open Mod Tools → Community appearance → Banner to upload it.
Reddit lists community minimums of 1072×128 on desktop and 1080×128 on mobile. The profile option here is a design preset. Reddit’s community banner guidelines
How does the AI Reddit banner generator use my prompt or photo?
Choose Generate with AI and describe one subject, its position and a background color. A reference photo is optional. GPT Image 2 creates a single landscape image, which the editor crops to your selected header. Leave lettering out of the prompt and enter the community name in the title field instead. You can adjust that text after generation without spending more credits.
A tiny observatory on a snowy ridge, centered on the horizon. Use midnight blue and warm amber light. Keep the edges quiet and leave the sky free of lettering.
What does a Reddit banner template look like as a wide header?
To turn a square design into a Reddit banner image, decide which details should stay visible in a shallow strip. In the three pairs below, compare the starting artwork with the wide layout. The subject, headline and empty space move to fit the strip. If a simple crop cuts through a word, start with a wider layout or generate a new background and add the title afterward.
Coffee community
Gardening on mobile
Workshop profile
Is the Reddit banner maker free to use and download?
Cropping a photo and downloading the PNG costs $0. You can do both without signing in or entering a card. AI generation uses credits and requires an account. Choose the browser editor when you already have artwork and only need a new crop. If you want the model to draw or reinterpret a scene, check the credit cost with and without a photo below.
| Editing option | Price / allowance | Download / watermark |
|---|---|---|
| Crop and title | $0 · no account or card | PNG · no added watermark |
| AI credit packs | From $2.99 for 10 credits · 0 free signup credits | PNG · no added watermark |
| Working resolution | Text only | With one photo |
|---|---|---|
| 1K | 9 credits | 13 credits |
| 2K | 18 credits | 21 credits |
How other banner editors handle free exports
| Tool | Canva | Adobe Express |
|---|---|---|
| Starting price | $0 | $0 |
| Free allowance | Free editor and free elements; AI quota undisclosed | Free basic editing; limited AI credits, count undisclosed |
| Watermark | Free content is clear; unlicensed Pro content is watermarked | Policy for all assets undisclosed |
| Output | Editable design, PNG or JPG | Editable design, PNG or JPG |
When does a Reddit banner crop or AI edit work poorly?
A group portrait with faces along both edges is hard to fit into a shallow header. A Reddit banner size converter crops pixels from the edges. AI can extend the scene, but it can also change a face or redraw a small logo. Use an existing wide photo when identity matters, keep the subject near the middle and check the banner on Reddit after upload. The visible area varies by device.
What should I check before downloading my Reddit banner?
Check the destination, the crop around the main subject and the spelling of any title. The download is one flat PNG at the dimensions printed above the preview. Keep your original photo if you plan to make another version later. These answers cover the choices that affect the file and where your image is processed.
Can I download a Reddit banner for free without a watermark or account?
Yes. Choose Crop a photo, add your image and download the PNG. The photo stays in the browser, and the editor adds no watermark. AI generation requires sign-in and credits.
Can the Reddit banner generator work without a photo?
Yes. Select Generate with AI and enter a short description. A text-only request costs 9 credits at 1K or 18 at 2K and produces one image. A reference photo changes those costs to 13 or 21 credits.
Which preset should I choose in the Reddit profile banner maker?
Use Profile for a personal header and Community for a subreddit desktop header. Mobile exports a separate 1080×128 community image. A profile banner and an avatar are different uploads; this tool exports the wide header.
How can I keep the community name spelled correctly?
Generate a background without lettering. Then enter the exact name in the banner title field and check the preview. Changing the title or its crop before downloading uses no additional credits.
Why does my banner look different on my phone?
Reddit can display a different slice of the artwork on a phone. Compare both device previews, keep important details away from the edges and export a dedicated Mobile image for a community. Check the actual profile or community after upload.
What happens to my uploaded photo?
Cropping reads the photo in your browser. When you choose AI generation, the reference is uploaded to site storage and sent to the image provider. Free-credit AI results are public; paid generations default to private. Use local cropping for a sensitive photo.