File Tools

Upload an image to detect potential hidden data using LSB (Least Significant Bit) steganography analysis. Analyzes pixel-level modifications, shows a heatmap of altered pixels, detects statistical anomalies, and extracts hidden text messages if found. Compatible with standard LSB encoding and the STEG magic header.

Upload any image to see a detailed binary-level breakdown of what contributes to its file size - pixel data, compression overhead, metadata (EXIF/IPTC/XMP), color profiles (ICC), and structural headers. Get prioritized optimization tips with estimated savings for web performance, mobile app optimization, and storage.

Upload any file to instantly detect its true file type by reading the magic bytes (file signature / header). The tool bypasses incorrect file extensions and reveals the real format. Shows hex dump with matching signature bytes highlighted, ASCII interpretation, MIME type, file category, and extension match analysis.

Detect copy-move forgeries in images using pixel-block matching. Upload any image to find cloned/copied regions, view heatmap overlays showing the location and intensity of detected clones, and get confidence scores with region details. Three sensitivity presets for different detection needs. 100% private.

Extract copyright and metadata information from images. Upload any image to read embedded EXIF copyright tags (Artist, Copyright, ImageDescription), IPTC fields (CopyrightNotice, ByLine, Credit, Source, UsageTerms, Contact), and PNG text chunks. Get a copyright completeness score, rights status classification.

Detect the color depth of any image - 1-bit, 8-bit, 24-bit, 32-bit, 48-bit, and beyond. Upload any image to analyze pixel data, detect bits per channel, identify color space, check for embedded ICC profiles, and get a detailed technical report.

Analyze noise patterns in images to check whether they were shot at high ISO, heavily processed, or carry synthetic-looking noise (a hint, not proof, of AI generation). See per-channel noise levels, noise histograms and a false-color heatmap.

Scan any file for embedded content - images, documents, archives, audio, video, executables, and fonts hidden inside. Upload any file and instantly detect 40+ file formats using binary signature (magic byte) analysis. Get results organized by category with exact byte offsets, size estimates, confidence indicators.

Extract and analyze embedded timestamps from photos - Date Taken, Date Digitized, and Date Modified. Upload any image to read EXIF timestamp metadata, detect chronological anomalies (future dates, out-of-order timestamps, identical dates), and identify software editing traces. All processing is local in your browser.

Upload any file to view its raw binary contents as an interactive hex dump with side-by-side hex and ASCII column display. Search for byte patterns using hex notation (FF D8 FF) or ASCII text, navigate through pages of 1024 bytes, and inspect every byte. Supports files of any type and size -

Convert text to binary (0s and 1s) or decode binary to text with 8-bit UTF-8 and 16-bit UTF-16 representation modes. See a detailed character breakdown table showing binary, decimal, and hex values for each character. Supports swap direction, real-time conversion, and copy/download. All processing is local in your.

Compute Cyclic Redundancy Check (CRC) values for text strings or files using CRC-8, CRC-16, CRC-32, and CRC-64 with 18 polynomial standards including IEEE 802.3, MODBUS, Castagnoli, Kermit, XMODEM, ECMA-182, and more. View results in hex, decimal, and binary formats. Verify computed values against expected checksums.

Upload any file to count byte values (0-255) and view a complete frequency distribution. Calculates Shannon entropy to classify files as text, binary, compressed, or encrypted. Displays an interactive histogram, detailed byte statistics (mean, median, mode), and top/bottom byte frequency tables -

Upload any binary file and define a structure template with field types (uint8, uint16, uint32, uint64, int8, int16, int32, int64, float32, float64, string, hex, bytes, struct) at specific byte offsets. Includes 10 pre-built templates for BMP, PNG, JPEG, GIF, ELF64, WAV, ZIP, PDF, and WebP headers. Supports per-field.

Upload any file or paste text to detect Byte Order Mark (BOM) at the start. Shows the BOM hex sequence, interpreted encoding, and endianness. Supports UTF-8, UTF-16 (BE/LE), UTF-32 (BE/LE), UTF-7, SCSU, BOCU-1, and GB-18030. Interactive hex dump with highlighted BOM bytes and a complete BOM reference table - all.

Free online BOM (Byte Order Mark) Detector. Upload any file to detect BOM signatures for UTF-8, UTF-16, UTF-32, and other encodings. View hex dump with BOM bytes highlighted, encoding details, endianness, and cross-platform compatibility recommendations. 100% private browser-based processing - no signup required.

Free online File Chunk Analyzer. Upload any PNG, IFF (ILBM), WAV, or AVI file to analyze its internal chunk structure. Lists all chunks with type, offset, size, CRC validation (PNG), and format-specific descriptions. 100% private browser processing - no signup required.

Free online File Offsets Finder. Upload any file and jump to any byte offset in decimal, hex (0xNN), or percentage format. See each byte as hex, decimal, and ASCII with plain-English interpretation. Navigate byte by byte with context table. Supports any file type, 100% private browser-based processing. No signup.

Upload any Office document (DOCX, XLSX, PPTX) to analyze VBA macros for suspicious security patterns. Scans VBA source code for shell execution, network access, file system manipulation, code injection, auto-execute triggers, obfuscation, and credential access. Each finding is rated by severity.

Upload XLSX or CSV files to analyze cell content: data types (number, text, date, formula), formulas, conditional formatting, data validation rules, named ranges, merged cells, and column statistics. View type distributions, completion rates, top values, numeric range analysis, and structural features.

Upload a document (DOCX, PPTX, PDF) or font file (TTF, OTF, WOFF) to extract and list all embedded fonts. Shows font names, types (TrueType/OpenType), subset status, and embedding source. All processing is local in your browser, no signup required.

Upload any Office document (DOCX, XLSX, PPTX) to scan for embedded VBA macros. Detects macro names and module names from vbaProject.bin binary data, identifies auto-execute macros (Auto_Open, Workbook_Open, Document_Open), and highlights security risks. All processing is local in your browser - no signup required.

Upload Office documents (DOCX, XLSX, PPTX) to scan for embedded OLE objects - detects OLE packages, executables, documents, images, and archives with risk level classification from Safe to Critical. All processing is local in your browser - free online OLE object scanner, no signup required.

Free document comparison tool online. Compare two document versions side by side with inline change highlighting. Supports word-level and line-level diff with file upload - no signup required.

Free online File Watermark Detector. Upload any image or document to detect visible overlays, invisible LSB steganographic data, and metadata-based watermarks (EXIF copyright, IPTC credit, XMP rights). 100% private browser processing - no signup required.

Compare two hash values to check if they match. Paste any two hash strings to instantly compare them with automatic algorithm detection (MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE2, and 20+ more). Get a clear visual match/no-match result, algorithm information, and colon-formatted display - all processed locally.

Upload a file and enter its expected SHA-256, SHA-512, SHA-384, SHA-1, or MD5 hash to instantly verify if the file has been tampered with, corrupted, or modified. Uses the browser Web Crypto API for fast local hashing - 100% private, no server uploads required. Free online Integrity Checker, no signup required.

Upload any file to instantly compute its SHA-256, SHA-1, and MD5 cryptographic hashes. Copy individual hash values with one click, view colon-formatted versions, and search the SHA-256 hash on VirusTotal (70+ antivirus engines) and Google - all from a single interface. Generates a comprehensive plain-text report.

Enter any MIME type (image/jpeg, application/pdf) or file extension (.jpg, .pdf) to find all associated file extensions, format descriptions, and applications. Search a database of 400+ MIME types across 19 categories with intelligent filtering - all processed locally in your browser, no signup required.

Look up the registered IANA MIME type for any file extension - from common formats like PDF, JPEG, and MP4 to specialized formats like OpenEXR, WOFF2, and COLLADA. Search by extension, MIME type, format name, or application. Browse by category to explore 200+ formats. All data is bundled in your browser - no API.

Decode percent-encoded (URL-encoded) text or files - handles %XX sequences, + as space, multi-byte UTF-8 percent-encoding. View side-by-side encoded vs decoded output with character breakdown, encoding pattern statistics, and analysis.

Paste text or upload a file to instantly detect its character encoding. Detects UTF-8, UTF-16 (BE/LE), UTF-32 (BE/LE), ISO-8859-1 through ISO-8859-15, Windows-1252, Windows-1251, Shift-JIS, EUC-JP, GB2312, GBK, Big5, EUC-KR, KOI8-R, KOI8-U, MacRoman, IBM437, IBM850, IBM866, and more with confidence scores.

Paste text to detect obfuscation patterns including reversed text, upside-down Unicode text, Zalgo glitch text, leetspeak (1337), ROT13 cipher, Base64 encoding, binary/hex encoding, Morse code, and URL percent-encoding. Shows decoded versions for reversible patterns with confidence scores - all processing runs.

Convert text between 35+ character encodings - UTF-8, UTF-16, ISO-8859 families, Windows-1250 through Windows-1258, KOI8-R, KOI8-U, Shift-JIS, EUC-JP, ISO-2022-JP, GBK, GB2312, GB18030, Big5, EUC-KR, MacRoman, IBM437, IBM850, IBM866, and more. Paste text or upload a file to convert between any two encodings.

Paste text or upload a file to validate its UTF-8 encoding against RFC 3629. Performs byte-by-byte analysis detecting invalid start bytes, missing continuation bytes, overlong sequences, UTF-16 surrogates, codepoints beyond U+10FFFF, and unexpected continuation bytes. Provides four result views: Summary with validity.

Convert between escape sequence formats: C-style escapes (\n, \t, \xHH, \uHHHH), Unicode escapes (\uXXXX, \UXXXXXXXX), URL/percent encoding (%20, %2F), HTML entities (&, <, {), and hex escaped bytes (\xHH). Auto-detects source format, supports bidirectional conversion between any pair of formats.

Detect and convert line endings: CRLF (Windows), LF (Unix/Mac), CR (old Mac). Shows the current format with line-ending statistics and allows batch conversion. All processing is local in your browser - free online Line Ending Converter, no signup required.

Decode Base64-encoded data back into files with automatic file type detection via magic bytes. Supports data URIs, PNG, JPEG, PDF, ZIP, and 30+ file signatures. Download decoded files with correct extension - all processing is local in your browser, free online Base64 File Extractor, no signup required.

Edit file bytes in real-time with interactive hex dump, overwrite and insert modes, hex/text search, and download patched files. Click any byte to modify it, switch between modes, and download the patched file. 100% private browser-based hex editing, no signup required.

Scan binary files for RGB/ARGB color values and extract color palettes from game ROMs, firmware, executables, raw data dumps, and legacy formats. Configure pixel format (RGB, BGR, RGBA, BGRA, ARGB, ABGR), color depth (8-bit, 16-bit, 5-6-5, 5-5-5), scan offset, tolerance, and stride. View results as a visual palette.

Upload any file and enter offsets in decimal or hex (0x400) to find and inspect byte values at specific positions. Shows absolute and relative offset, hex value, decimal value, ASCII interpretation, byte category, character name, binary representation, file position percentage, and automatic file signature detection.

Upload any archive file (ZIP, RAR, 7z), PDF, or Office document (DOCX, XLSX, PPTX) to detect if it is encrypted and identify the encryption method. Detects ZIP 2.0 Legacy encryption, WinZip AES-256, PKWARE strong encryption, RAR AES-128/256, 7z AES-256 with header encryption, PDF RC4/AES (all revisions), and Office.

Browse a comprehensive reference of over 150 file extensions classified by security risk level - Safe, Caution, Dangerous, or Unknown. Search by extension name, filter by risk level to see all dangerous file types at a glance, or browse by category (Documents, Images, Executables, Scripts, Archives, and more).

Upload any file to analyze its alignment relative to disk sectors (512, 4096, and custom sector sizes). Detects alignment offset, calculates padding bytes needed for sector-aligned storage, identifies the optimal sector size for minimum wasted space, and visualizes how the file maps across disk sectors.