All tools
Choose a format-specific file check, or verify upload requirements before you submit a file. Each tool explains what it found and what you can try next.
Check the file itself
Eleven format-specific checks use the shared ARADURU File Doctor engine to inspect structure, integrity, metadata, and extension mismatches.
Excel File Check
Check workbook packaging, worksheets, XML parts, archive integrity, and extension mismatches.
Open checkerWord File Check
Inspect the Word package, main document XML, relationships, and filename mismatches.
Open checkerPowerPoint File Check
Inspect presentation structure, slide parts, package integrity, and extension mismatches.
Open checkerPDF File Check
Check PDF signature, version, page tree, password protection, EOF marker, and parsing.
Open checkerZIP File Check
Check archive readability, CRC32 integrity, file counts, unpacked size, and expansion ratio.
Open checkerGZIP File Check
Check GZIP headers, decompression, CRC32, ISIZE, original filename, and expansion ratio.
Open checkerTAR File Check
Check TAR member headers, checksums, sizes, block padding, archive-end markers, and extraction-path warnings.
Open checkerVideo File Check
Inspect MP4 or QuickTime containers, tracks, duration, resolution, codecs, and truncation.
Open checkerImage File Check
Check PNG, JPEG, GIF, WebP, BMP, and TIFF structure, dimensions, frames, truncation, and extension mismatches.
Open checkerData File Check
Check JSON, XML, and CSV syntax, structure, delimiters, rows, columns, encoding, and extension mismatches.
Open checkerText File Check
Check text encoding, BOM markers, line endings, empty files, and unusual control characters.
Open checkerWill this file work where you need it?
Use Compatibility Check to interpret file identity, structural portability, and access or media-profile clues for opening, sharing, extracting, playing, or uploading.
Will a website accept your file?
Use Upload Check when the file itself may be fine, but a website, form, or platform has rules for file size, extension, or filename length.
Useful diagnosis before tool count.
ARADURU adds tools when they can meaningfully narrow down a real file problem. A supported format should provide more than an extension lookup: it should surface structure, integrity, metadata, or compatibility clues and explain the next step.