5 free browser-based tools to create, extract and inspect ZIP and GZIP archives - no software required.
Bundle multiple files into a single ZIP archive in your browser.
Unzip and extract the contents of any ZIP archive.
Preview the file list inside a ZIP without extracting it.
Compress a single file using the GZIP algorithm.
Decompress a .gz file back to its original format.
Common questions about ZIP archives, GZIP compression and browser-based archive tools.
ZIP is an archive format that can contain multiple files and folders, each optionally compressed. GZIP is a compression format designed for a single data stream - it is commonly used to compress one file at a time. ZIP is better for bundling multiple files; GZIP is often used for web server compression and single-file compression.
Yes. The Create ZIP Archive tool runs entirely in your browser. Select the files you want to bundle, and the ZIP is generated locally on your device without uploading anything to a server.
There is no hard server-side limit because processing happens locally. Practical limits depend on your device memory and browser. Very large archives (hundreds of MB) may be slow or cause the browser to run out of memory.
Yes. The ZIP Contents Viewer lets you inspect the file list, sizes and folder structure of any ZIP archive without extracting the files. This is useful for checking a download before opening it.
GZIP can compress any file type, but it works best on text-based files like HTML, CSS, JavaScript, JSON and XML. Binary files like images and videos are already compressed and typically see little benefit from GZIP.
Tool reference
Archive tools help bundle, inspect, compress and extract ZIP or GZIP data. ZIP is useful for collections of files; GZIP is commonly used for a single stream. Compression results depend heavily on the source.
Bundle multiple files into a single ZIP archive in your browser. Use it when you need working with ZIP or GZIP data directly in the browser. Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Unzip and extract the contents of any ZIP archive. Use it when you need working with ZIP or GZIP data directly in the browser. Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Preview the file list inside a ZIP without extracting it. Use it when you need working with ZIP or GZIP data directly in the browser. Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Compress a single file using the GZIP algorithm. Use it when you need working with ZIP or GZIP data directly in the browser. Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Decompress a .gz file back to its original format. Use it when you need working with ZIP or GZIP data directly in the browser. Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Complete category reference
Archive workflows package, inspect, compress or extract files. ZIP is broadly useful for collections of files and folders; GZIP is commonly used for one stream. Compression ratio depends on the source, and successful extraction is not a security scan.
Bundle multiple files into a single ZIP archive in your browser.
Use it when you need working with ZIP or GZIP data directly in the browser. Selected data is packaged or compressed into a new archive. Already-compressed media such as JPG, MP4 or ZIP often shrinks very little, while text and structured data can compress much more.
Before you finish, Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Unzip and extract the contents of any ZIP archive.
Use it when you need working with ZIP or GZIP data directly in the browser. Compressed data is decoded into its original file or files. Extraction does not make untrusted content safe, so unknown executables, scripts and documents still require normal security caution.
Before you finish, Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Preview the file list inside a ZIP without extracting it.
Use it when you need working with ZIP or GZIP data directly in the browser. The archive is inspected and its entries are listed without intentionally extracting them to your downloads folder. This is useful for checking names, folder structure and approximate sizes first.
Before you finish, Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Compress a single file using the GZIP algorithm.
Use it when you need working with ZIP or GZIP data directly in the browser. Selected data is packaged or compressed into a new archive. Already-compressed media such as JPG, MP4 or ZIP often shrinks very little, while text and structured data can compress much more.
Before you finish, Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.
Decompress a .gz file back to its original format.
Use it when you need working with ZIP or GZIP data directly in the browser. Compressed data is decoded into its original file or files. Extraction does not make untrusted content safe, so unknown executables, scripts and documents still require normal security caution.
Before you finish, Check the archive opens, expected filenames are present, folder structure is sensible and extracted files match what you intended to share. For important transfers, compare a checksum as a separate integrity check.