SEO-Friendly Filename Renamer

What the sEO-Friendly Filename Renamer does

An image filename is one of the few signals a search engine has about what a picture contains, alongside the alt text, the caption and the surrounding copy. IMG_4021.JPG contributes nothing. meridian-stability-4-side-view.jpg contributes a great deal, and costs nothing to produce.

This renamer takes a list of filenames and cleans them. It strips the suffixes that escape from people's desktops — FINAL, v2, copy, (1) — and the timestamps that screenshot tools append. It flattens accents so Chaussures survives rather than becoming percent-encoded in the URL. It lowercases everything, which matters because most web servers are case-sensitive and a stray capital in a filename is a broken image waiting to happen. It replaces every run of punctuation and spaces with a single hyphen, and normalises .jpeg to .jpg.

Names that carry no meaning at all — the IMG_, DSC and Screen Shot patterns — are detected and replaced with your descriptive prefix, since there is nothing in the original worth keeping. Files whose names are meaningful are left largely intact.

Collision handling matters in bulk. If six camera files all become running-shoes-flat-feet.jpg, five of them would overwrite the others on upload. The tool numbers them instead and reports how many it had to resolve — a high number is a sign your prefix is doing all the work and the images need individual descriptions.

Rename before uploading. Changing a filename after publication changes the URL, which means the old one 404s and any image-search ranking it had starts again.

How to use it

1. Paste your filenames, one per line — a directory listing pasted straight in works.
2. Set a descriptive prefix for the files whose own names say nothing.
3. Check the collision count; if it is high, the images need individual descriptions rather than one shared prefix.
4. Copy the new names, or the rename commands, and apply them before uploading.

A worked example

Six typical files:

Four of the six had meaningless names and got the prefix plus a number, which is honest but not ideal — those four images would each be better with their own description. The fourth row shows what good input produces: an em dash, brackets, capitals and a FINAL v2 suffix all removed, leaving a name that describes the photograph.

Frequently asked questions