LHA to RAR Converter

Transform LHA archives into RAR format online for free

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Rare to Mainstream

Move files from the obscure LHA format into RAR — one of the most widely recognized archive formats with robust error correction.

Quick Processing

The entire LHA to RAR conversion runs on our optimized cloud servers, delivering results within seconds for typical archives.

Files Stay Private

All uploaded LHA files are removed right after processing. Output RAR archives are deleted from our servers within 24 hours.

How to convert LHA to RAR

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

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

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

About formats

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 While modern formats have superseded LHA for new archives, it remains relevant for accessing Japanese software archives and retro computing collections, with extraction supported by 7-Zip and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

RAR (Roshal Archive) is a proprietary compressed archive format created by Russian software engineer Eugene Roshal in March 1993, distributed through the WinRAR) archiver that became one of the most widely installed Windows applications worldwide. The format uses a sophisticated compression algorithm that has evolved through several major versions (RAR 1.3, 2.0, 3.0, 5.0), with each revision improving compression ratios and adding features. RAR5, the current version, employs a dictionary-based algorithm with dictionary sizes up to 1 GB and supports optional BLAKE2sp hashing for integrity verification. The format provides solid compression (treating multiple files as a continuous stream), multi-volume archive splitting, recovery records for repairing damaged archives, AES-256 encryption for both content and filenames, and Unicode filename support. One advantage is reliable error recovery — RAR's recovery record feature can reconstruct damaged archive portions, a capability that made it popular for distributing large files across unreliable connections and Usenet posts. Strong compression performance is another key strength: RAR consistently ranks among the top formats for general-purpose compression ratios, particularly on heterogeneous file collections. While the compression algorithm is proprietary and creating RAR archives requires licensed software, the decompression code is freely available, and extraction is supported by virtually every archiving tool across all platforms. RAR remains one of the most common archive formats encountered online.

Developer: Eugene Roshal

Initial release: March 1993

Frequently Asked Questions

Why convert LHA to RAR?

RAR is widely recognized and includes error recovery records — a practical upgrade from LHA, which few people outside Japan can even open.

What programs open RAR files?

WinRAR is the standard. 7-Zip and PeaZip also extract RAR archives on Windows, macOS, and Linux without difficulty.

Is LHA really that uncommon?

Outside Japan and retro Amiga communities, LHA is extremely rare. Most people have never encountered the format on modern systems.

Does the conversion change any file data?

Not a single byte. The files from your LHA archive are packaged into RAR exactly as they were — no alterations at all.

Can I batch convert LHA files to RAR?

Yes — upload multiple LHA archives in one session and convertio.co will convert each one to a separate RAR file.

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LHA to RAR Quality Rating

4.6 (16 votes)

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