Binary File Inspector
Drop any file to identify it from its magic bytes against a 70-pattern signature table across 51 formats, then explore a hex dump, embedded signatures, per-block entropy and extracted ASCII strings — all read locally in your browser.
Drag a file here, or choose one
Analysed by an entropy scan, a signature scan and string extraction — up to 8.00 MB is loaded for the dump. The file is never uploaded.
About this tool
This inspector reads a file entirely inside your browser: it matches the leading bytes against a 70-pattern magic-byte table covering 51 formats, dumps hex with an ASCII column, scans for embedded signatures at any offset, charts Shannon entropy per 1 KiB block to hint at compression or encryption, and extracts printable ASCII strings. Large files are read in chunks and capped (8.00 MB for the dump and signature scan, 2.00 MB for strings) so the tab stays responsive, and nothing is ever uploaded or sent anywhere.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Binary File Inspector really free?
Yes. Binary File Inspector is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Binary File Inspector upload my data?
No. Binary File Inspector runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Binary File Inspector is ready to use on desktop or mobile.
Does Binary File Inspector work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
More developer tools
Folder Structure Generator
Build folder structure diagrams, ASCII directory trees, and file tree visualizations for READMEs and docs.
.gitignore Generator
Generate merged .gitignore rules for your stack with one click.
JSON to TypeScript Interface
Convert JSON into TypeScript interfaces with inferred nested types.
Text to Slug Converter
Convert titles and phrases into clean SEO-friendly URL slugs.
UTM Builder
Build campaign URLs with UTM parameters for analytics tracking.
JSON Formatter & Validator
Validate, format, and minify JSON directly in your browser.