Image Analyzer — Metadata Inspector
Upload an image to instantly analyze its format, dimensions, file size, aspect ratio, and megapixel count.
Drop your PNG / JPG / GIF / WebP / BMP / SVG / TIFF file hereTap to select a file
Supports PNG, JPG, GIF, WebP, BMP, SVG, TIFF, up to 100MB
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imageAbout Image Analyzer
Image Analyzer is an image tool that runs in your browser. Upload an image to instantly analyze its format, dimensions, file size, aspect ratio, and megapixel count. The page you are reading is the same workspace you will use to do the work: pick a file or paste your input, choose the options that matter to you, and the tool produces the result on your device.
The engine behind the page is standard browser APIs. It reads your file in-memory and writes the result back into the browser. Supported inputs include PNG, JPG, GIF, WebP, BMP, SVG, and TIFF. For 100 MB and below the work usually completes in seconds; larger files mostly depend on how much spare RAM your device has.
Image Analyzer sees the most use from e-commerce owners cleaning product shots and students compiling visual reports, but the design is intentionally generic enough that you do not need a specialist background to get a good result. The defaults aim at the most common case so a first-time user can get the right output without changing any settings.
The architecture is local-first by design. Once the page is loaded, you can disconnect from the network and the tool still completes the job. The processing stack — standard browser APIs and the small UI shell wrapping it — ships with the page itself, so the tool keeps working in offline conditions, on a captive-portal Wi-Fi, or behind a corporate proxy that limits what the tab can reach.
The right moment to reach for Image Analyzer is when you have a focused image editing and conversion job that fits inside a browser tab. Open the page, drop in the file or paste your input, choose the options that matter, and the tool returns the result.
When the job finishes, Image Analyzer hands you the result as a sensibly named file. Filenames are derived from your input where possible, so a quick batch of jobs leaves you with a tidy folder rather than a pile of generic "output (3)" files. Nothing is auto-saved on Favtoo's side because nothing was ever sent there.
The hard constraints are easy to remember. Maximum input: 100 MB. Multiple files per run: no — one input at a time, by design, to keep results predictable. The same controls apply on every run.
If your task needs more than one step, chain Image Analyzer with Find Dominant Colors, Image Viewer, and Image Resizer. Each tool produces output that is a clean input to the next, so multi-step workflows are just a matter of opening the next tool in a new tab and continuing.
Image Analyzer keeps the control set focused. Every option on the page is there because a real workflow needs it, and the defaults aim at the most common case so a first-time user can get the right output without changing any settings.
From a product perspective, Image Analyzer is one of the simplest possible expressions of "do one thing well." The catalog contains dozens of related tools that each handle a slightly different image editing and conversion task, and every one is a separate page rather than a tab inside a larger app. That separation keeps each tool fast to load and easy to bookmark.
Image Analyzer is built around the moment of need: a focused page you open when you have a specific task, complete the task, and close. The catalog contains many adjacent tools so the same model serves the surrounding parts of a typical image editing and conversion workflow.
Useful patterns when working with Image Analyzer: keep the input file open in another tab so you can compare against the result; give the output file a descriptive name when saving so you can find it later (the default name is sensible but generic); and treat each run as independent — the tool has no concept of "history", which means you cannot accidentally pollute one job with leftovers from another.
Common gotchas worth flagging: Image Analyzer only accepts PNG, JPG, GIF, WebP, BMP, SVG, and TIFF, so if your file is in another format you will need to convert it first. The 100 MB ceiling is per-file, not per-session; you can run as many separate jobs as you like, but a single oversized input will be rejected on load.
If Image Analyzer solved your problem, sharing the page link with someone who has the same problem is the most useful thing you can do. The catalog grows mostly through word of mouth; visitors arriving through a recommendation tend to be the ones the tool serves best.
How it works
- 1Open Image Analyzer in your browser. The page loads quickly and the tool is ready to use the moment it becomes interactive.
- 2Drop a PNG, JPG, GIF, WebP, BMP, SVG, and TIFF file onto the upload area, or click to pick one from your device.
- 3Tweak the controls if the defaults are not quite right for your input. The options are kept short and labelled in plain language.
- 4Hit the run button. standard browser APIs does the work in your browser tab.
- 5Save the output when it is ready.
- 6Re-run with different settings as often as you want. Each run produces a fresh output and the original file on disk is never modified.
Common use cases
- Resize a hero image for a landing page without losing crispness using Image Analyzer.
- Optimise a product photo so it loads quickly on a slow connection.
- Sharpen a slightly soft photo before sending it to print.
- Compose a mockup banner without bouncing between three different apps.
- Generate a square thumbnail from a wide marketing photo.
- Strip EXIF data from a photo before posting it publicly.
- Crop an image down to the section you actually want to share.
- Convert a phone screenshot into a CMS-friendly format.
- Convert a batch of camera files into web-friendly formats.
- Prepare a transparent logo for use over different backgrounds.
FAQ
Which formats?
PNG, JPEG, WebP, GIF, and SVG data URIs are recognized. PNG dimensions are parsed from the header.
Dimensions detection?
For PNG, dimensions are extracted from the binary header. Other formats require rendering via an Image element.
File size accuracy?
Size is estimated from base64 length (base64 is ~33% larger than raw bytes).
EXIF data?
EXIF extraction is not included; use a dedicated EXIF tool for camera metadata.
Private?
Yes — analysis runs locally in your browser.
URL input?
You can paste an image URL. The tool will generate code to load and analyze it.
How often is Image Analyzer updated?
Image Analyzer is updated whenever the underlying engine releases an improvement or a bug fix. Because the tool is delivered as a static page, every visit fetches the latest version automatically — there is no "version" to manage on your end. If a particular release ever changes default behaviour, the change is documented on Favtoo's changelog so you can confirm what shifted.
Does Image Analyzer match what professional tools produce?
Image Analyzer is built on standard browser APIs, which is the same class of engine used by professional image editing and conversion pipelines. For deterministic operations, the output is byte-identical to what an equivalent CLI run would produce; for operations involving a codec or a model, the result is well within the range of what comparable tools generate. If you have a specific reference output you need to match, run a small test job first to confirm the configuration produces what you expect.
How many times per day can I use Image Analyzer?
Inputs are capped at 100 MB per file, which keeps memory usage stable across phones, tablets and older laptops. You can run Image Analyzer as often as you need; every run produces a full-quality result.
Why does Image Analyzer feel slow on large inputs?
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 100 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Does Image Analyzer ask for any browser permissions?
Image Analyzer only needs the standard web platform — file picker access for the inputs you choose to load, and optionally clipboard access if you copy the result rather than downloading it. There is no microphone, camera, geolocation or background-permission request, because none of those are needed for the work the tool does.
Can I process multiple files at once with Image Analyzer?
Image Analyzer processes one input at a time by design — it keeps memory usage predictable on lower-end devices and makes results easier to verify. To handle a folder, run the tool once per file; the page stays loaded between runs and remembers your last-used settings, so the second run is essentially instant.
What does the error message in Image Analyzer mean?
Failures usually fall into one of three buckets: the input is in an unsupported format, the input is over the size cap, or the input is structurally malformed (a truncated download, a partial export, or a stream the engine does not recognise). The first two are easy to confirm — check that your file is one of PNG, JPG, GIF, WebP, BMP, SVG, and TIFF and that it is below 100 MB. For the third, opening the file in its native viewer first is the fastest way to confirm the source is intact.
How is Image Analyzer different from desktop apps that do the same thing?
Desktop apps usually have more advanced features but require installation, maintenance and (often) a licence. Paid online tools are convenient but route your file through their servers and gate downloads behind accounts. Image Analyzer sits in between: free, instant, and private, but intentionally narrow in scope. For one-off jobs and the common image editing and conversion operations, it is usually the lowest-friction choice; for highly specialised work, a dedicated app is still the right answer.
Does Image Analyzer reduce quality of the result?
Image Analyzer is built to preserve quality wherever the underlying image 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.