Meta Tag Analyzer — SEO Audit
Analyze HTML meta tags for SEO completeness — checks title, description, Open Graph, Twitter Cards, and more.
How it works
- 1Paste or type your text in the input field
- 2Click "Analyze Meta Tags" — processing happens in your browser
- 3Copy the result or download as a text file
What to do next
About Meta Tag Analyzer
Meta Tag Analyzer handles a focused step in the modern web and productivity utility workflow. Analyze HTML meta tags for SEO completeness — checks title, description, Open Graph, Twitter Cards, and more. The page loads with the upload area, controls and result panel all visible at once, so the path from "I have a file" to "I have the result" is one screen long.
Meta Tag Analyzer works well as a bookmarked utility you reach for when you need it. The first visit shows you what the tool does; the second is when you realise it is a low-friction option for the task and worth keeping in your tab list.
Meta Tag Analyzer is a static page plus a client-side engine. The browser does the work; there is no separate backend in the loop for the actual processing. That architecture is why the tool starts immediately, why it does not depend on the load on a remote service, and why running multiple jobs in a row does not slow it down.
From a technical standpoint, Meta Tag Analyzer is JavaScript and standard browser APIs running in your tab. The browser is the runtime; the page is the interface. Maximum input size: 0 MB per run.
The hard constraints are easy to remember. Maximum input: 0 MB. Multiple files per run: no — one input at a time, by design, to keep results predictable. The same controls apply on every run.
The heaviest users of Meta Tag Analyzer tend to be creators experimenting with formats, marketers running campaigns and product managers comparing options. Each group brings slightly different expectations to the tool, but the same single-page architecture serves every one of them with the same response time.
Meta Tag Analyzer returns the result as a download. If you are running multiple jobs, the output names will not collide as long as the input names differ. You can re-run with different settings as many times as you like; each run produces a fresh file with no caching trickery in between.
For multi-step jobs, Meta Tag Analyzer sits next to Open Graph Tag Generator, Twitter Card Generator, and Schema Markup Validator. None of them depend on each other — you can use Meta Tag Analyzer on its own — but together they cover the common variations of the task this page exists to handle.
Some notes on the design of Meta Tag Analyzer. The page is intentionally narrow: one input, the controls relevant to the task, and one output. Adding unrelated features would make the common case slower for the majority of users, so the surface is held to what people actually use.
A short note on how Meta Tag Analyzer came to look the way it does: every iteration started by watching how someone unfamiliar with the tool actually used it, then removing whatever got in their way. That is why the upload area dominates the screen, the run button is bigger than the secondary controls, and the result panel is unmissable when the job finishes.
As a single-page tool, Meta Tag Analyzer stays focused on one web and productivity utility step. Multi-step workflows are composed by chaining adjacent tools — each tool produces a standard file the next one can read directly, so a longer pipeline is just a sequence of short tab-and-tab visits.
If you want to get the most out of Meta Tag Analyzer, three small habits help. Drag-and-drop is faster than the file picker once you get used to it. The keyboard shortcut for downloading the result is whatever your browser uses for "save link as," because the result is a normal download. And if you are working on a sensitive file, processing in an Incognito or Private window is a good extra layer — it leaves no trace in browser history when the tab closes.
If Meta Tag Analyzer appears to hang, the engine is almost certainly still working — large inputs simply take longer to process inside a browser than they would on a server with multi-core scheduling. For inputs near the 0 MB cap, give it up to a minute on a typical laptop before assuming something is stuck.
Meta Tag Analyzer is one of many single-purpose tools in the catalog. Each is built around the same single-page model. Use this one, close the tab, and come back the next time you need the same job done. None of the tools require prior knowledge of the others — each page is self-contained.
How it works
- 1Open the Meta Tag Analyzer workspace above. The interface is a single page, so there is nothing to navigate.
- 2Add your web utility input by dropping it onto the page or browsing for it.
- 3Tweak the controls if the defaults are not quite right for your input. The options are kept short and labelled in plain language.
- 4Trigger processing. standard browser APIs reads your input, applies the transformation, and writes the result back into the page.
- 5Save the output when it is ready.
- 6Repeat the process for additional inputs whenever you need to. The page stays loaded, so subsequent runs are quick.
Common use cases
- Sanity-check a webhook response while debugging using Meta Tag Analyzer.
- Run a one-off check during a meeting without context-switching.
- Run a fast accessibility check before publishing.
- Generate a temporary asset for a social post.
- Compare two product variations side by side.
- Audit a marketing page before launch.
- Pull a quick reference number for a status update.
- Create a placeholder image for a wireframe.
- Validate a setting before circulating it to a team.
- Generate a campaign asset in seconds for a quick test.
FAQ
What is checked?
Title tag, meta description, Open Graph tags, Twitter Card tags, viewport, and canonical URL.
How do I get the HTML?
View source (Ctrl+U) on any page and copy the <head> section.
Open Graph checks?
Verifies og:title, og:description, og:image, and og:url are present.
Private?
Yes — analysis runs locally. No URLs are fetched.
Title length?
Recommended title length is under 60 characters for optimal search display.
Description length?
Meta descriptions between 50 and 160 characters are recommended.
Is there a desktop version of Meta Tag Analyzer?
No installation is needed. Meta Tag Analyzer runs as a normal web page, with no browser extension, no native helper, and no separate desktop client to download. That is partly a privacy choice — extensions can request broad permissions, while a regular page is sandboxed by default — and partly a convenience one: you can use Meta Tag Analyzer on any computer you have temporary access to without leaving anything installed on it.
Does Meta Tag Analyzer reduce quality of the result?
Meta Tag Analyzer is built to preserve quality wherever the underlying web utility format allows it. Operations that are mathematically lossless (e.g. structural transformations, lossless re-encoding) round-trip with no perceptible change. Operations that involve a lossy codec inevitably introduce small artefacts at the byte level, but the defaults aim at the sweet spot where output looks or sounds the same to a normal viewer or listener while still being meaningfully smaller or faster than the input.
How fast is Meta Tag Analyzer?
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 0 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Are there any restrictions on using Meta Tag Analyzer at work?
Meta Tag Analyzer can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
Is Meta Tag Analyzer mobile-friendly?
Meta Tag Analyzer runs in any modern mobile browser — Safari, Chrome, Firefox and the in-app browsers in most messaging apps all support the underlying APIs. Performance depends on the device: a recent phone handles typical inputs nearly as fast as a laptop, while older devices may take a few seconds longer near the 0 MB ceiling. The interface lays out cleanly on small screens, so you do not need to pinch-zoom to see the controls.
What is the maximum file size for Meta Tag Analyzer?
Inputs are capped at 0 MB per file, which keeps memory usage stable across phones, tablets and older laptops. You can run Meta Tag Analyzer as often as you need; every run produces a full-quality result.
Is there a programmatic version of Meta Tag Analyzer?
Meta Tag Analyzer is a browser-only tool by design and does not expose a hosted API. The reason is the same as the privacy story: there is no Favtoo backend doing the work, so there is no service to call. If you need to script the same transformation, the underlying engine (standard browser APIs) is open-source and can be used directly from your own code.