Upload a damaged, unknown, or suspicious file and see exactly what survived. Everything runs locally in your browser β files are never uploaded to a server.
Don't take our word for it β open DevTools (F12) β Network tab and watch nothing leave your machine. How this works β
Basically "what the hell is this file?" β scans magic bytes against 120+ known formats and tells you what it actually is.
Visualize where a file deviates from its expected structure β missing headers, missing trailers, truncation, zeroed-out regions.
See exactly how a file is built β a synchronized structure tree, hex view, and field inspector, plus entropy, strings, and embedded-signature scanning.
Walks the real object graph, xref table or stream, and page tree of a PDF β click any object to follow its references, decode its stream, and see exactly what's broken.
Walks a SQLite database's real header, schema, B-trees, and pages β recovers table SQL, previews rows, and finds exactly which pages are damaged.
Reads a raw disk image's real MBR/GPT partition tables and NTFS MFT, maps damaged regions, and carves known file signatures β read-only, original image never touched.
Detect wrong or missing magic bytes, see exactly what should be there, and patch a repaired copy for download.
Walks the central directory, falls back to a raw local-header scan when it's damaged, and lists whatever can still be recovered.
BOM problems, mojibake, invalid UTF-8, and mixed line endings β diagnosed and fixed with a downloadable clean copy.
CRC32, MD5, SHA-1, SHA-256, and SHA-512 β compute, compare against a known hash, or diff two files against each other.
Classifies what's actually wrong, estimates how much is recoverable where that's a real computable thing, and tells you which tool to open next.
Diagnoses a broken JPEG, PNG, GIF, BMP, or WebP, shows whatever the browser can still decode, carves out embedded/concatenated images, and pulls surviving EXIF and thumbnails.
Recovers EXIF, XMP, IPTC, and ICC metadata from JPEG and TIFF-based files β every camera field, embedded thumbnail, and GPS block, kept private until you choose to reveal it.
Diagnoses and repairs malformed or truncated JSON and XML β trailing commas, unquoted keys, unclosed tags, missing braces β and reports exactly what it changed.
Validates YAML, TOML, .env, and INI files β tabs in YAML indentation, unterminated TOML strings, unquoted .env values, malformed INI sections β with the exact line and why.
Real quote-aware CSV parsing β detects the delimiter, unterminated quoted fields, wrong column counts, and duplicate headers, with a row-by-row preview.
DOCX, XLSX, PPTX, and ODT are ZIP+XML packages β this walks the real ZIP central directory, CRC-verifies each required part, and recovers readable text, cells, and embedded media.
Finds out whether a file ended before its structure was actually complete β real declared-size, chunk, and entry-count evidence, not just a missing-footer guess β then routes you to the right recovery tool.
Detects the format (JSON Lines, Apache/Nginx, syslog, generic timestamped), spots truncation, out-of-order timestamps, and encoding damage, and breaks down log levels.
Walks WAV's real RIFF chunk structure and checks declared vs. actual size, validates MPEG frame sync across an MP3, and reads ID3v1/ID3v2 tags.
Real box/chunk/element walk for MP4, MOV, AVI, MKV, and WebM β including the classic "recording got interrupted" missing-index problem.
Real ASN.1/DER structure walk for a PEM or DER certificate, CSR, or private key β subject, issuer, a computed expired check, key size, and extensions including SANs.
Scans every offset in a file or disk image against the full 122-entry signature database and extracts embedded files using their real end-of-file markers.
Real PE, ELF, and Mach-O header parsing β architecture, entry point, sections/segments, and library dependencies for a Windows EXE/DLL, Linux binary, or macOS Mach-O that won't run.
Real decompression and CRC verification for GZIP and TAR, plus structural/header-CRC integrity checks for 7-Zip, RAR, XZ, and BZIP2 archives that won't open.
JPEG, PNG, GIF, BMP, WebP β diagnose, repair, and carve embedded pictures.
ZIP-family formats including DOCX, XLSX, PPTX, JAR, and APK.
JSON and XML β configs, API responses, exports, feeds.
No extension, wrong extension, or you just don't recognize it.
Real decompression and CRC verification for GZIP and TAR, plus structural/header-CRC integrity checks for 7-Zip, RAR, XZ, and BZIP2 archives that won't open.
Real PE, ELF, and Mach-O header parsing β architecture, entry point, sections/segments, and library dependencies for a binary that won't run, with exact truncation/corruption detection.
Diagnoses a DOCX, XLSX, PPTX, or ODT that won't open β real ZIP central directory walk, per-part CRC-32 verification, and recovered text, cells, and embedded media.
Scans every offset in a file against the full signature database and extracts embedded files using their real end-of-file markers, not a guessed size.
Real ASN.1/DER walk for PEM/DER certificates, CSRs, and private keys β subject, issuer, a computed expired check, key size, and extensions including SANs.
Real box/chunk/element walk for MP4, MOV, AVI, MKV, and WebM, including the classic interrupted-recording missing-moov problem.
RIFF chunk walk for WAV with declared-vs-actual size checks, MPEG frame sync validation for MP3, and ID3v1/ID3v2 tag reading.
Real quote-aware CSV parsing β delimiter detection, unterminated quoted fields, column-count consistency, duplicate headers.
Real syntax checking for YAML, TOML, .env, and INI β tabs in YAML indentation, unterminated TOML strings, unquoted .env values, malformed INI sections.
Format detection for JSON Lines, Apache/Nginx, and syslog, plus truncation, out-of-order timestamp, and encoding-damage checks.
New header, mega-menu, shared header/footer, and dark/light/system theme control across every tool.
Hand-rolled lenient parser that logs and fixes structural errors instead of just rejecting the file.
Broken JPEG/PNG/GIF/BMP/WebP recovery with embedded-image carving and surviving EXIF/thumbnail extraction.
One place to classify what's wrong with a file and get routed to the right specialist tool.