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Tools/Files/File Metadata Viewer

File Metadata Viewer

ReadyHow to use

Inspect true type, MIME, entropy, dimensions and SHA-256 of any file.

FilesBrowser workspace

Free to use. No account, no daily limit, and no backend processing for tool input.

Loading tool…

Tip: use samples, upload, copy, download, and send-to actions inside the workspace where available.

Actions

File utility

Local file inspection

File Metadata Viewer reads file metadata or content inside your browser without a backend upload step.

Local readPreview basedExport ready

Use it for file checks, hashes, signatures, MIME clues, and quick binary-safe inspection.
Only the needed preview or computed result should be kept in memory.
Download or copy the output when you need to move the result into another workflow.

Browser memory is the practical limit for large files; prefer chunked tools when available.

Related tools

File Signature CheckerIdentify a file's true type by its magic bytes.
MIME Type DetectorSniff a file's real MIME type and compare it to the declared type.
Hex ViewerView any file as a classic offset / hex / ASCII dump.
Duplicate File FinderFind byte-identical files in a folder by SHA-256, not by name.
Batch File RenamerRename many files at once with patterns, counters, and collision checks.
Binary ViewerView the raw bits of any file alongside ASCII.

Related guides

Analyze File Metadata Viewer OnlineInspect true type, MIME, entropy, dimensions and SHA-256 of any file. Use File Metadata Viewer in your browser with no signup, no daily limit, and no backend processing for tool input.
Extract ZIP OnlineOpen a ZIP, list every entry, and pull out just the files you need. Use ZIP Extractor in your browser with no signup, no daily limit, and no backend processing for tool input.
Extract TAR OnlineRead .tar, .tar.gz and .tgz archives, including permissions and long paths. Use TAR Extractor in your browser with no signup, no daily limit, and no backend processing for tool input.
File Splitter Online GuideCut a large file into byte-exact numbered parts you can rejoin later. Use File Splitter in your browser with no signup, no daily limit, and no backend processing for tool input.
Analyze File Merger OnlineJoin split parts back into one file, ordered numerically with gap detection. Use File Merger in your browser with no signup, no daily limit, and no backend processing for tool input.

What is File Metadata Viewer?

File Metadata Viewer is a free, browser-based tool that helps you understand a dataset at a glance. Inspect true type, MIME, entropy, dimensions and SHA-256 of any file. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.

How to use File Metadata Viewer

1Paste your data or drop a file (CSV or JSON).
2Read the generated summary — types, counts, distributions, and any issues found.
3Export the report, or send the data to another tool to act on the findings.

Features

Per-column types, nulls, uniques, and stats
Spot data-quality issues fast
100% client-side — no upload, fully private
Free with no account, no watermark, and no daily limit
Works on large inputs, limited only by your device's memory
Load a sample, then copy, download, or share your result

Common uses

Quick one-off analyzer jobs without opening a heavy app
Preparing data before importing it elsewhere
Sharing a reproducible result with a teammate via a link

Used by

Developers
Security analysts
Support teams
QA engineers
Analysts
Researchers

Common errors

A summary is treated as proof that the dataset is clean.
Outliers are removed automatically without checking whether they are real events.
Column types are trusted without reviewing mixed or sparse fields.
Duplicate or missing-value issues are ignored before visualization.

How it works

1Profiles the data input.
2Computes counts, inferred types, summaries, and warnings where supported.
3Turns findings into a practical next step.

Recommended workflow

1
Prepare the input
Profile the data first so missing values, types, duplicates, and outliers are visible before you edit it.
2
Run File Metadata Viewer
Review the preview, copy or download the result, and keep everything local in your browser.
3
Next recommended tool
File Signature Checker: Identify a file's true type by its magic bytes.
Open tool
4
Then continue with
MIME Type Detector: Sniff a file's real MIME type and compare it to the declared type.
Open tool
5
Then continue with
Hex Viewer: View any file as a classic offset / hex / ASCII dump.
Open tool

Frequently asked questions

How do I use File Metadata Viewer?: Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Inspect true type, MIME, entropy, dimensions and SHA-256 of any file.
Is my data uploaded or stored anywhere?: No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.
Is File Metadata Viewer free?: Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.
What's the maximum file size?: There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.
Do I need to install anything?: No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.

Drop file here or click to browse

Read locally — contents are hashed in this tab and never uploaded

100% in your browser — files never leave your device.