Alt-text Checker
IMG inventory from pasted HTML.
How to use
Enter HTML into Alt-text Checker and press Run — or just type, live results update as you edit. SiteKit computes the answer instantly with a pure JavaScript engine (Web Worker for heavy inputs) on this page. Nothing is sent anywhere: no signup, no server round-trip, same inputs always give same outputs.
Steps
- Open the tool below (or scroll to the interactive Alt-text Checker).
- Enter HTML.
- Press Run (Ctrl+Enter) — or keep typing for live results.
- Copy the answer, download it, or share the link.
FAQ
Is Alt-text Checker really free?
Yes — free with no signup, no credits and no limits on this tool. It is supported by clearly labeled ads placed away from the buttons, never by paywalls.
Is anything I type into Alt-text Checker sent to a server?
No. Every keystroke is computed with a pure JavaScript engine (Web Worker for heavy inputs) inside this page. Close the tab and your data is gone — unless you explicitly download or share it.
What should I enter in "HTML"?
Put your html here — for example: <img src="a.png" alt="Cat">. Leave the defaults first to see how it works, then adjust. Every field is validated with a plain-language message if something is off.
I normally use MetaTags.io — why switch?
If you are tired of one generator per tab across ad-heavy thin pages, SiteKit is the alternative: one input into meta plus Open Graph plus JSON-LD plus preview plus copy, with validation.
How accurate is Alt-text Checker?
Everything runs on your device, so results are instant and repeatable — same inputs, same outputs, no server involved.
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Free alternative
Free alternative to SmallSEOTools and MetaTags.io for meta tags, schemas, robots and SEO checks — one input into meta plus Open Graph plus JSON-LD plus preview plus copy, with validation. SmallSEOTools vs MetaTags.io vs SiteKit.
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