7Z to LHA Converter

Convert 7Z to LHA archive format — free online tool

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Fully Browser-Based

No software to download or maintain. Convert 7Z to LHA directly in your web browser on convertio.tools — works on any operating system or device.

7Z to LHA Preserved

Your directory tree, filenames, and all archived content transfer faithfully from the 7Z container to LHA format. The output is ready for any LHA-compatible system.

Rapid Conversion

Server-side processing means the 7Z to LHA conversion finishes quickly, freeing you from long waits — especially useful when working with multiple archives.

How to convert 7Z to LHA

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose lha or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your lha file right afterwards

About formats

7Z is the native archive format of 7-Zip, an open-source file archiver created by Igor Pavlov in 1999. The format uses an open, modular architecture that supports multiple compression algorithms — LZMA and LZMA2 (the defaults), PPMd for text-heavy data, BWT, and Deflate — selectable per file within the same archive. LZMA typically achieves 30-70% better compression ratios than Deflate-based ZIP files on comparable data, making 7Z one of the most space-efficient general-purpose archive formats available. The container structure stores files with full directory hierarchy, timestamps, and attributes, while supporting solid compression (treating multiple files as a continuous data stream) for additional ratio gains on archives with many similar files. Encryption uses AES-256 with key derivation based on iterative SHA-256 hashing, and both file contents and filenames can be encrypted. One advantage is superior compression density — 7Z consistently produces smaller archives than ZIP or RAR on most data types, valuable when minimizing storage or bandwidth matters. The open architecture is another strength: the format specification and 7-Zip source code are publicly available under the GNU LGPL, enabling any developer to implement 7Z support without licensing constraints. Cross-platform tools supporting 7Z exist for Windows, macOS, Linux, and mobile platforms, and the format has gained widespread recognition as the preferred choice when maximum compression is the priority.
Developer: Igor Pavlov
Initial release: 1999
LHA (originally LHarc) is a compressed archive format created by Haruyasu Yoshizaki (known online as Yoshi) in May 1988, combining Lempel-Ziv sliding-window compression with Huffman coding for efficient data reduction. The format achieved enormous popularity in Japan, where it became the dominant archiving standard throughout the late 1980s and 1990s — virtually all Japanese software distribution, from commercial applications to BBS file sharing, relied on LHA archives. The format stores files with per-entry headers containing filename, timestamps, OS-specific attributes, and CRC-16 checksums, using various compression methods designated by two-character codes (lh0 through lh7, with lh5 being the most common general-purpose algorithm). LHA's compression algorithms were influential beyond the format itself: the lh5 method's approach to combining LZSS with static Huffman coding was adopted by the Deflate algorithm used in ZIP, gzip, and PNG. One advantage is the format's historical efficiency — LHA offered strong compression ratios with modest CPU requirements, critical on the relatively slow processors of its era. The format's deep cultural impact in Japanese computing is another notable aspect: LHA was freely distributed, contributing to its ubiquitous adoption across the Japanese software ecosystem. While modern formats have superseded LHA for new archives, it remains relevant for accessing Japanese software archives and retro computing collections, with extraction supported by 7-Zip and other contemporary tools.
Developer: Haruyasu Yoshizaki
Initial release: May 1988

Frequently Asked Questions

Why convert 7Z to LHA?

LHA is required for Amiga systems, certain Japanese software distributions, and retro computing environments. If your target platform expects LHA archives, converting from 7Z is the quickest path.

What opens LHA archives?

The lha command-line tool handles extraction on Unix systems. On Windows, 7-Zip and PeaZip both read LHA files. Amiga-native tools like LhA also work on classic hardware.

Will all my files transfer correctly?

Yes — every file and folder from the 7Z archive is placed into the LHA container with the original structure preserved. No data is lost in the process.

Can I use this on my mobile phone?

Absolutely. Convertio.tools's web-based converter works in Safari, Chrome, Firefox, and other mobile browsers — no app download required.

Is there a file size restriction?

Free users have upload limits, but premium accounts support much larger files. Visit convertio.tools to see the current plan options for your needs.

Do I pay for this conversion?

The basic 7Z to LHA conversion is free. Premium plans exist for users who need higher throughput or larger archive support.

7Z to LHA Quality Rating

4.2 (16 votes)
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