Rename product images to Amazon's file naming convention

Type the product identifier once — the field takes any of the identifiers Amazon lists — and every image is renamed identifier.MAIN.jpg, identifier.PT01.jpg and so on, with spaces and hyphens stripped from the identifier, ready to download one by one or as a single ZIP.

🔒 Runs in your browser. Your images are never uploaded.

Drop images here, or click to choose

Up to 20 images at a time, 5 MB each

You can also paste an image with Ctrl / ⌘ + V

Official spec for Amazon (US)

ItemOfficial valueTypeSourceVerified
File name pattern Product identifier + variant code + file extension, the three parts separated by periods, e.g. B000123456.MAIN.jpg stated sellercentral.amazon.com
Official wording
Image files must be named: Product identifier + variant code + file extension. Example: B000123456.MAIN.jpg

The official page words this as must be named, and separately states that spaces, dashes, or additional characters will prevent your image from uploading. It does not say that any other deviation from the pattern blocks upload. The page’s own requirements table marks the File naming row Optional while its body words it as must be named, so we show it as stated together with the official wording and let you judge it. This tool builds exactly this pattern: the identifier you type, a period, the variant code, a period, and the extension your file already has.
Characters that prevent upload Spaces, dashes (hyphens) or additional characters in the file name stated sellercentral.amazon.com
Official wording
spaces, dashes, or additional characters will prevent your image from uploading

This tool removes spaces and hyphens from the identifier you type and uses periods as the only separators. It does not remove any other character: if the identifier you type contains anything else, it stays in the name and appears in the preview so you can correct it before downloading. Third-party guides sometimes say a hyphen or an underscore may join the identifier and the variant code as long as the parts are in the right order; that is not the official pattern, which separates the three parts with periods, and the sentence quoted here is what rules it out.
Supported file formats (the extension part of the name) JPEG (.jpg or .jpeg), TIFF (.tif or .tiff), PNG (.png), non-animated GIF (.gif) stated sellercentral.amazon.com
Official wording
Supported file formats JPEG (.jpg or .jpeg), TIFF (.tif or .tiff), PNG (.png), non-animated GIF (.gif)

The official page prints this list under a heading without labelling it a requirement or a recommendation, so we show it as stated rather than putting a hardness badge on wording that carries none. The quote stops at the end of the format list; the recommendation that follows it on the same line has its own row below, so a recommendation is not folded into this one. The extension is the third part of the file name. This tool keeps the extension your file already has and does not convert formats. The same page also lists formats that are not accepted, among them EPS, BMP, PDF and PSD; that list is summarised from the page rather than quoted. resize-image-for-amazon can re-encode JPEG, PNG, WebP and AVIF files; EPS, BMP, PDF and PSD have to be exported as JPEG or PNG in your own image editor first.
Recommended file format JPEG recommended sellercentral.amazon.com
Official wording
JPEG recommended

The official example file name, B000123456.MAIN.jpg, uses the .jpg extension. PNG, TIFF and non-animated GIF are also on the supported list; this tool does not change the format you upload.
What Amazon states it may do about a non-compliant image Amazon may suppress the listing from search until a compliant image is provided stated sellercentral.amazon.com
Official wording
If your images don't comply with our policies, we may: Suppress (hide) your product listing from search until you provide a compliant image

This row describes Amazon's stated process; it is not a prediction about any particular listing. The quoted sentence is the whole of what we take from this page: what Amazon says it may do about a non-compliant image. We do not attribute anything else to it here. The naming pattern in the first row is the only part of this that this tool covers.

What this tool does

  • Build every file name as identifier.VARIANT.extension, with periods as the only separators, following the official example B000123456.MAIN.jpg
  • Remove spaces and hyphens from the identifier you type, because the official page says spaces, dashes or additional characters will prevent the image from uploading
  • Name the first file MAIN and the following files PT01, PT02 and so on in the order you add them, and let you change any file's code from the official list (MAIN, SWCH, PT01–PT99, IN01–IN99, PS01–PS06, TOPP, BOTT, LEFT, RGHT, FRNT, BACK, SIDE, INGR, EEGL, DTLS)
  • Flag a variant code that is used more than once in the same set, on every row that shares it
  • Show the resulting file name next to each image before you download, and put exactly that name on that image's own download link
  • Keep the extension already in your file name as the third part of the name, written in lower case (.JPG becomes .jpg), and never convert your file to another format (a file whose name has no extension is the exception — see the list of what we don't do)
  • Download the renamed files one at a time or all together as one ZIP, entirely in your browser. The limit shown above the drop zone — 20 images at a time, 5 MB per file — is this tool's own processing limit; Amazon's own pages publish no file-size limit at all

What it does not do

  • Change a single pixel or byte of your image — the file is copied unchanged, only its name is different
  • Resize, re-encode or convert formats — resize-image-for-amazon does that
  • Check that the identifier exists in Amazon's catalogue, that it belongs to your listing, or that its check digit is valid
  • Use the identifier type you select for anything — it is a label only. It does not change the file name and does not check the identifier's length or format
  • Remove anything other than spaces and hyphens from the identifier — any other character you type stays in the preview for you to correct
  • Decide which photo belongs in which slot — you pick the variant code
  • Test the white background, how much of the frame the product fills, or any other image content rule — those figures are quoted with their own source and date on the related pages below
  • Make the ZIP work when two files share one variant code — a ZIP cannot hold two files under one name, so the second file goes in with -2 inserted before its extension (-3 for a third, and so on), which is neither the name shown in its row nor the official pattern. Clear the duplicate flag first, or download those files one at a time
  • Work out the real format of a file whose name has no extension — for such a file we take the extension from the type your browser reports when that type is PNG, JPEG, WebP or AVIF, and otherwise fall back to .jpg; the bytes are never changed, so that extension can be wrong. Check the third part of the name in the preview before you download
  • Predict whether Amazon accepts an image — the file name is one of several published rules, and we link the official page so you can verify them
  • Upload your files anywhere
  • We only rename copies of your files — the image bytes are unchanged. We do not alter the content of your photo. Files are processed in your browser and are not uploaded to a server.

Numbers you may have seen elsewhere that are not on the official page

FAQ

What is Amazon's image file naming convention?

The official Product image guide (G1881) says image files must be named product identifier + variant code + file extension, with the example B000123456.MAIN.jpg. The three parts are separated by periods. The same passage says spaces, dashes or additional characters will prevent the image from uploading.

Which product identifiers can I use in the file name?

The official page lists a barcode, ASIN, UPC, EAN, GTIN, ISBN (10 or 13) or JAN. That list is summarised from the page rather than quoted, which is why it has no row of its own in the spec table above. Type the identifier exactly as it appears on your listing; this tool removes spaces and hyphens and places it before the variant code. It does not check whether the identifier is valid or belongs to your listing.

Which variant codes does Amazon list?

MAIN, SWCH, PT01–PT99, IN01–IN99, PS01–PS06, TOPP, BOTT, LEFT, RGHT, FRNT, BACK, SIDE, INGR, EEGL and DTLS. The list is summarised from the official page rather than quoted, which is why it has no row of its own in the spec table above; the page lists the codes but we do not reproduce any per-code definition here. This tool lets you pick any of them per file and defaults to MAIN for the first file and PT01, PT02 and so on for the rest, in the order you add them. A code used twice in the same set is flagged on every row that shares it; clear the flag before you download the ZIP, because a ZIP cannot hold two files under one name.

My UPC has hyphens in it. Why does that matter?

The official page says spaces, dashes or additional characters in the file name will prevent your image from uploading. This tool removes spaces and hyphens from the identifier automatically and shows the cleaned name in the preview. Any other character is left in place for you to correct.

Does renaming change the image itself?

No. The file's bytes are copied unchanged into the download; only the name differs. Pixel size, format, colour, metadata and file size all stay exactly as they were.

Which file extension should the name end with?

The official page lists JPEG (.jpg or .jpeg), TIFF (.tif or .tiff), PNG (.png) and non-animated GIF (.gif) as supported, and recommends JPEG; the official example ends in .jpg. This tool keeps the extension already in your file name. If you need to re-encode first, resize-image-for-amazon opens JPEG, PNG, WebP and AVIF files; a TIFF or GIF has to be exported as JPEG or PNG in your own image editor.

Can I rename a file whose format is not on Amazon's list, such as WebP?

The tool will build the name and keep the extension already in your file name, but a format that is not on the supported list (JPEG, TIFF, PNG, non-animated GIF) stays outside that list after renaming. Re-encode such a file as JPEG or PNG with resize-image-for-amazon, then rename it here.

Is there a maximum file size for Amazon images?

Not on the official pages. The Amazon pages linked below give image size in pixels only, and say nothing about bytes or megabytes, so this page states no Amazon file-size limit. The pixel range itself is quoted with its source and the date we checked it on the Amazon resize page, not restated here. Renaming does not change the file size either way. The per-file limit shown above the drop zone is this site's own limit, not an Amazon rule.

I corrected a main image that Amazon flagged. Do I upload it under a new name?

The sentence we quote from the official image suppression page is only that Amazon may suppress the listing from search until you provide a compliant image. Uploading the replacement under the same variant code (for example MAIN) is our guidance, not a quoted rule — we have no verbatim official sentence for it. Either way the name itself does not change: a replacement main image is still named identifier.MAIN.extension.

Does this naming pattern apply to other marketplaces?

No, it is Amazon's. Walmart, for example, publishes its own file-naming recommendation on its official Image guidelines page — summarised from the page rather than quoted, because we captured no verbatim sentence for it. Check each marketplace's own page before reusing these names elsewhere.

If the file name is correct, will Amazon accept the image?

The file name is one of several published rules. The same official pages set the pixel size range, the supported formats, the pure white main-image background, and content rules on how much of the frame the product fills — quoted with their sources on the product image fill ratio checker rather than restated here. This tool applies only the naming pattern and links the official page so you can verify each rule; it does not predict the outcome of Amazon's review.

Related tools

Resize product images for Amazon Upload your photos → JPEG (8-bit RGB) or PNG (indexed, up to 256 colours), 72 dpi written, ICC profile stripped, kept up to Amazon's 10,000 px maximum, never enlarged. Check your Amazon main image for a pure white background Upload your main images → see the actual RGB values at the four corners and along each edge, whether any edge carries a frame or line, and whether a soft shadow band runs along an edge. We sample the four corners and an 8-pixel-deep band along each edge and compare against exactly 255, 255, 255 (tolerance 0); the band depth and the tolerance are our own settings, and edge sampling is our method, not Amazon's published wording. Check your product’s share of the frame for Amazon and Shopee Mall Upload your product photos → get the bounding-box area share of each frame, checked against Amazon 85% and the Shopee Mall 60% / 50% figures (Shopee Mall guidelines, undated), plus the longest-side share for reference. Write Amazon’s disclosure keyword into your image metadata Upload your JPEG or PNG files → download the same files with contains-synthetic-performer written into XMP dc:subject, the field named on Amazon's Product image guide page. Pixels are not touched. Why Amazon suppressed your listing image The reasons Amazon publishes for hiding a listing over its images, the scope of each, the official wording it rests on, and which tool on this site checks it. Export product images for Amazon, Walmart, eBay, Etsy and Shopify Upload your photos, tick the platform presets you need, and download one ZIP with a folder per platform page and preset, plus a report.csv listing every output and its flags.

All tools →

Sources