File Inspector

In-browser file forensics: hex editor, 580+ format parsers, steganography, entropy & PE/ELF analysis, file carving — 100% local.

Tool Media & Files Updated Apr 20, 2026

Learn how this works

How to Use

Drop any file onto the dropzone (or click to browse).
Click any byte in the hex view to inspect it; Shift+click to select a range.
Use the tabs to switch between hex, strings, format analysis, PE/ELF, entropy visualisations, and more.
Export reports as JSON, hex dump, or a selection copy (C array).

📂

Drop a file here

📂 Pick a file

…or drop one here. Nothing is uploaded — 1,700+ file types. v5.0

🛡️ Sandbox mode (untrusted handling — leave off to treat the file as trusted)?

External lookup links (off by default; shows VirusTotal/Shodan/AbuseIPDB/ipinfo links on public IPs — clicking one sends that IP to the service)

Hash Identifier

Complete Feature List (300+)

22 Analysis Tabs

Hex Editor — Interactive hex with inline editing, undo/redo, search, bookmarks

Hashes — SHA-256, SHA-1, SHA-512 + hash identifier (MD5, bcrypt, Argon2...)

Format — 580+ format parsers with structural breakdown

Embedded — File carving with smart end markers + archive browser

Integrity — Corruption detection (PNG/JPEG/PDF), EOF hidden data

Security — Steganography analysis, metadata stripping

Visualize — Byte frequency, entropy heatmap, pixel map, digram, Hilbert curve

Binary — Entropy stats, byte distribution, data inspector

Strings — Extract + auto-classify into 9 categories

Text — Syntax-highlighted preview with encoding detection

Preview — Image/audio/video/font preview

Compare — Side-by-side hex diff with similarity scoring

Timestamps — Unified timeline from all sources

Batch — Multi-file analysis

PE Analysis — Sections, imports, security flags, 31 packer signatures

ELF — Sections, NX/PIE/Canary flags, linked libraries

Documents — VBA macros, PDF JavaScript/Launch detection

Intel — Compiler ID, credentials, wallets, PII, privacy scanner

AI — Claude-powered analysis with your own API key

Advanced — x86 disassembler, Rich header, anti-VM, YARA rules

Patterns — XOR finder, Base64 regions, encoding detection

Deep — Archive bombs, JWT decoder, risk scoring, treemap

580+ Format Parsers

Images: PNG, JPEG, BMP, TIFF, WebP, GIF, ICO/CUR, PSD, SVG

Audio: WAV, MP3/ID3v2, FLAC, OGG, MIDI

Video: MP4, AVI, MKV/WebM

Documents: RTF, Markdown, EPUB, Email (EML)

Archives: ZIP, GZIP, RAR, 7-Zip, TAR, ISO 9660

Executables: PE/EXE/DLL, ELF, Mach-O, Java .class

Data: SQLite, CSV/TSV, YAML, TOML, INI, JSON (package.json)

Crypto: PEM, DER/ASN.1, SSH Keys, Certificates

Game ROMs: NES (iNES), SNES (SMC/SFC), Game Boy (GB/GBC)

Dev Files: Dockerfile, Makefile, package.json, requirements.txt, .gitconfig, .env, PCAP

Other: STL (3D), Torrent, LNK (shortcuts), Python .pyc, WASM

Intelligence Features

Credential Scanner: AWS keys, GitHub tokens, Slack tokens, Google API keys, private keys, JWTs, connection strings, Bearer tokens (12 patterns)

Code Analysis: License detection (MIT, GPL, Apache, BSD, MPL), framework detection (18 frameworks including React, Django, Express), vulnerability patterns (12 including SQL injection, XSS, command injection)

Privacy Scanner: SSN, credit cards, IBAN, phone numbers, passport patterns, tracking pixels (Google Analytics, Facebook, Mixpanel), fingerprinting scripts (canvas, WebGL)

Blockchain: Bitcoin (1xxx, 3xxx, bc1xxx), Ethereum (0x), Monero wallet address detection

Steganography: LSB bit plane viewer (toggle bits 0-7), zero-width Unicode characters, whitespace steganography, homoglyph detection (mixed Cyrillic+Latin)

Network Intel: Webhook URLs (Discord, Slack, Teams), hardcoded DNS, user-agents, API endpoints, DGA detection

Hex Editor Features

Interactive hex dump with clickable bytes and data inspector

Inline editing with undo/redo history

Hex search, ASCII search, Find All, Find & Replace

Bookmarks, column ruler, minimap, status bar

Fill range, copy as C array, export hex dump

Rainbow hex (color by byte value)

9 structure templates (PNG, JPEG, BMP, GIF, PE, ELF, ZIP, WAV)

String decoder (Base64, ROT13, XOR, URL decode, UTF-16)

Binary calculator (sum, XOR, AND, OR, bit count, uint16/32, float32, timestamp)

Download modified file after editing

AI-Powered Analysis

Uses your own Claude API key (stored locally in browser only)

6 preset prompts: Describe File, Security Assessment, Explain Anomalies, Incident Report, What Does This Do?, Next Steps

Custom question input — ask anything about the file

Multi-turn chat history with message bubbles

Full file context sent (type, hashes, format data, strings)

Export & Reporting

5 export downloads: HTML Report, Text Report, JSON, hex dump, and selection as a C array — plus a copyable auto-generated YARA rule

Smart Copy: Copy all hashes, copy all IOCs as CSV, copy all strings, copy analysis summary

EXIF metadata table for images

CSV data preview (sortable table, first 100 rows)

Archive file tree browser

Keyboard Shortcuts

G Go to offset / Search Ctrl+K Quick palette Ctrl+Z Undo Ctrl+Y Redo

H Hex A Hashes F Format R PE X Security S Strings K AI

1,700+ file types • 158 magic signatures • 22 analysis tabs • 100% browser-based • No upload, no server processing • Works offline

Type any extension.

What gets analysed

Identity

Magic bytes, MIME, extension check, 1,700+ formats

Hashes

SHA-256, SHA-1, SHA-512, CRC32, MD5

Structure

Per-format parsers: PNG chunks, WAV RIFF, PE headers, ELF, MP4 boxes, ZIP CD, and 50+ more

Entropy

Shannon, sliding window, heatmap, Hilbert curve, digram plot

Strings

URL / email / IP / path classification, min-length filter

Embedded

Carving by magic signature, extraction, hash-per-carve

Steganography

LSB bit planes, chi-square, suspicious trailers

Hex Editor

Inline edit, undo / redo, bookmarks, download modified

Compare

Side-by-side two-file diff of bytes, hashes, structure

About the File Inspector

Need a hand with image, audio and file tasks? The File Inspector does the work for you — free, and right here in your browser. In-browser file forensics: hex editor, 580+ format parsers, steganography, entropy & PE/ELF analysis, file carving — 100% local.

How it works

Type in what you have, and the answer shows up right away. Change anything and it updates by itself. Everything runs in your browser, so it is fast and nothing you type is sent away.

Want the deeper story? The Knowledge Base explains the ideas behind the tools in more detail.

Frequently Asked Questions

Does it upload my file?

No. Analysis is 100% browser-side; the file never leaves your machine.

What is file carving?

Scanning a file for the magic-byte signatures of other formats hidden inside it, so those embedded files can be extracted.

Which visualisations are available?

Byte frequency, entropy heatmap, pixel map, digram plot, entropy window, Hilbert curve, structure treemap, image histogram, LSB bit planes, and rainbow hex.

Extension vs magic bytes - which wins?

Magic bytes. The extension is user-set and can lie; magic bytes are the real file signature at the start of the binary.

How do I use the File Inspector?

Just type your numbers. The answer shows up right away — there is no button to press. Change anything and it updates by itself.

Is it free? Does it work without internet?

Yes to both. It is free with no sign-up, and once the page has loaded it keeps working even with no internet.

Where does my data go?

Nowhere — every calculation runs on your own device. Nothing you enter is uploaded, logged, or stored.

Common Use Cases

Unknown download

Confirm what a file really is before opening it.

Hidden payloads

Find files embedded inside other files via carving.

Hex editing

Edit bytes inline and download the modified file.

Forensic triage

Hash, metadata, entropy, strings, and format-specific parsing in one view.

Last updated: April 20, 2026