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File Management Tools

Free file utilities for compression, comparison, and inspection that stay entirely in your browser—no uploads, no watermarks.

Every tool is free, watermark-free, and runs entirely in your browser—nothing uploads to our servers. If anything needs extra permissions, we call it out right away.

ZIP Creator/Extractor

Create and extract ZIP archives with multiple files

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TAR Creator/Extractor

Create TAR archives for file bundling and distribution

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File Checksums

Calculate MD5, SHA1, and SHA256 checksums for file verification

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Bulk Renamer

Rename multiple files at once using customizable patterns

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File Splitter

Split large files into smaller chunks for easier transfer

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File Joiner

Join split file chunks back into original files

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MIME Detector

Detect and identify file MIME types by extension

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File Comparator

Compare files byte-by-byte to find differences

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Format Converter Hub

Convert between different file formats and encodings

Visit Format Converter Hub

Size Analyzer

Analyze file sizes and format them in human-readable units

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File Info Viewer

View detailed metadata and properties of files

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Duplicate Finder

Find duplicate files using checksum comparison

Visit Duplicate Finder
offlinewebtools.com

312 free calculators, converters, and creative helpers that stay on your device—nothing uploads to our servers. Every tool is watermark-free, runs entirely in your browser, and never uploads to our servers or asks for an account.

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