100% in-browser · nothing uploaded

Turn IMG_4821.jpg into
clean, SKU-safe filenames

Camera filenames like IMG_4821.jpg make product catalogs a mess and quietly hurt image SEO. AltForge bulk-renames your product photos into clean, consistent filename & SKU slugs — and drafts matching alt text as a companion — for the whole batch at once. Everything runs in your browser, so nothing ever leaves your device and you stay in control.

No upload No account No tracking

Why product-photo filenames & alt text matter

A one-minute look at how messy filenames and blank alt text quietly cost sellers — and how AltForge fixes it, privately.

🔒 Served straight from AltForge — no YouTube, no third-party embed, no tracking.

Your images and data never leave your browser

AltForge is a static web app. When you drop in images or import a CSV, everything is read locally using your browser's own file APIs and processed with in-page JavaScript. No image or spreadsheet is ever uploaded to any server, there is no account, and there are no analytics or tracking scripts. Close the tab and the data is gone.

How it works

Three steps, no sign-up, no upload.

1

Add your data

Import a product CSV (title, SKU, variant, color, material) or type rows by hand, then drag in your image files. Files stay on your device.

2

Generate & review

AltForge builds clean filename/SKU slugs and matching alt-text drafts from editable templates. Review and fine-tune every row in a live table.

3

Export

Download a CSV of reviewed alt text plus proposed filenames, and a rename manifest (original → proposed) — all generated locally in your browser.

Watch the full workflow (about a minute)

A silent, captioned walkthrough — sample data, image attach, template, review, the over-125 warning, and export.

🔒 The video is served straight from AltForge — no YouTube, no third-party embed, no tracking.

What you get

Everything you need to rename and prep a product-image batch, minus the busywork.

Deterministic filename & SKU slugs

Bulk-rename photos into lowercase, accent-stripped, safe-character filename and SKU slugs with a configurable separator, max length and automatic de-duplication.

Private by design

Images and CSVs are read locally with your browser's own file APIs. No external CDNs, no fonts phoning home, no trackers — nothing is uploaded, so you stay in control.

Rename-manifest exports

Download a filename + alt-text CSV and a rename manifest (original → proposed) as CSV or plain text, ready to feed your rename workflow.

Bulk review table

One row per image with inline editing, duplicate-filename highlighting, missing-field warnings, bulk regenerate and find & replace.

Alt-text drafts (companion)

Assemble consistent alt-text drafts from your own attributes and an editable pattern like {title} — {color} {material} {descriptor}. A live character count warns past 125. Drafts are built from what you type — always give them a quick review.

Try with sample data

One click loads a realistic sample catalog so you can explore the full workflow with no files and no account.

Pricing

Start free — the tool runs entirely in your browser. Upgrade only if you process large or frequent batches.

Free
€0

No account, forever

  • Up to ~25 items per batch
  • CSV import & manual entry
  • Filename & SKU slug generation
  • Alt-text drafts
  • Bulk review with find & replace
  • CSV export
  • Saved templates
  • Rename-manifest export
Try it free →
Lifetime
€59 once

One payment, no subscription

  • Everything in Pro
  • Pay once, keep it forever
  • All future updates included
  • Best value for regular sellers
Get notified →

Launching soon — no charge yet.

Paid checkout isn't live yet. When it launches, payments and EU VAT are planned to be handled by a merchant-of-record provider, so AltForge won't process or store your card details. See full plan details.

Prep your next product-image batch in minutes

Free, private, and ready right now — no account required.

Launch the free tool →