--- title: "Reddit Ads image compressor: under 3 MB, free | Herofab" description: "Compress product photos under the 3 MB limit of Reddit Ads. Saved as JPG, never cropped. Free, in your browser; nothing is uploaded." url: https://herofab.app/tools/reddit-ads-image-compressor language: en updated: 2026-10-12 --- # Compress images for Reddit Ads. Drop your photos and download them under 3 MB, the file-size limit in Reddit Ads's image rules. The quality is lowered first and the pixel dimensions only when needed; the photo is never cropped. It runs in your browser; nothing is uploaded. ![Black-dial watch with a mesh strap on white, three-quarter view](https://herofab.app/img/ex/watch-packshot-1100.webp) Made with Herofab · Packshot studio ## Under 3 MB per image, saved as JPG Limits come from each platform's own help pages, summarised in the [guides](https://herofab.app/guides/) (checked 24 September 2026). ## What Reddit Ads asks for. Source: [Reddit Ads Help — Image Ad Specifications; Carousel Ad Specifications; Free-form Ad Specifications; Ad Unit Specifications](https://business.reddithelp.com/s/article/image-ad-specifications) · checked 12 October 2026 Reddit image ad specs: JPG, PNG or GIF up to 3 MB, recommended 1,440 × 1,080 pixels (4:3) across devices, carousels of 2–6 images up to 20 MB each. - **Limit used:** Under 3 MB per image, saved as JPG - **Pixels kept:** The rules checked here state no minimum pixel size, so the tool stops before the photo falls under a quarter of its original width. - **Recommended:** Landscape 4:3 at 1,440 × 1,080 pixels is the recommended cross-device resolution for an image ad, so a single image serves multiple devices, placements and view modes - **Aspect ratio:** Any aspect ratio can be used, but it may cause formatting discrepancies such as letterboxing - **Formats:** JPG, PNG or GIF for image, carousel and free-form ad images; a GIF uploaded as a thumbnail is converted to a still image - **File size:** Maximum 3 MB for an image ad; in a carousel 20 MB per file and 3 MB for GIFs; maximum 10 MB for free-form ad images [Reddit Ads image guide](https://herofab.app/guides/reddit-ad-image-size) · [Image compressor](https://herofab.app/tools/image-compressor) ## Compressors by platform. [Walmart](https://herofab.app/tools/walmart-image-compressor) · [Shopee](https://herofab.app/tools/shopee-image-compressor) · [Cdiscount](https://herofab.app/tools/cdiscount-image-compressor) · [Ricardo](https://herofab.app/tools/ricardo-image-compressor) · [Heureka](https://herofab.app/tools/heureka-image-compressor) · [Miinto](https://herofab.app/tools/miinto-image-compressor) · [Google Ads](https://herofab.app/tools/google-ads-image-compressor) · [Amazon A+ Content](https://herofab.app/tools/amazon-a-content-image-compressor) · [Amazon Brand Store](https://herofab.app/tools/amazon-brand-store-image-compressor) · [LinkedIn ads](https://herofab.app/tools/linkedin-ads-image-compressor) · [Snapchat ads](https://herofab.app/tools/snapchat-ads-image-compressor) · [Google Business Profile](https://herofab.app/tools/google-business-profile-image-compressor) · [Temu](https://herofab.app/tools/temu-image-compressor) · [Newegg](https://herofab.app/tools/newegg-image-compressor) · [Webflow](https://herofab.app/tools/webflow-image-compressor) · [Amazon Ads](https://herofab.app/tools/amazon-ads-image-compressor) · [Mailchimp](https://herofab.app/tools/mailchimp-image-compressor) · [Wolf & Badger](https://herofab.app/tools/wolf-badger-image-compressor) · [THE ICONIC](https://herofab.app/tools/the-iconic-image-compressor) · [Trade Me](https://herofab.app/tools/trade-me-image-compressor) · [SHEIN](https://herofab.app/tools/shein-image-compressor) · [AliExpress](https://herofab.app/tools/aliexpress-image-compressor) · [Folksy](https://herofab.app/tools/folksy-image-compressor) · [ZALORA](https://herofab.app/tools/zalora-image-compressor) · [Taboola](https://herofab.app/tools/taboola-image-compressor) · [Outbrain](https://herofab.app/tools/outbrain-image-compressor) · [Omnisend](https://herofab.app/tools/omnisend-image-compressor) ## Compressing for Reddit Ads, answered. **What is the image file-size limit on Reddit Ads?** 3 MB per image, according to the rules summarised in the Reddit Ads guide. This tool saves each photo as a JPG under that size. **Is JPG accepted on Reddit Ads?** Yes. The formats Reddit Ads lists are JPEG, PNG, and GIF. **Does compressing for Reddit Ads change the pixel size?** Only when lowering the quality is not enough to get under 3 MB. The rules checked here state no minimum pixel size, so the tool stops before the photo falls under a quarter of its original width. **Where do these figures come from?** From Reddit Ads Help — Image Ad Specifications; Carousel Ad Specifications; Free-form Ad Specifications; Ad Unit Specifications, read on 12 October 2026. Marketplaces update their rules; the [official page](https://business.reddithelp.com/s/article/image-ad-specifications) is the final reference.