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支持的格式

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常见格式

ZIP

ZIP Archive - universal compression format developed by Phil Katz (1989) supporting multiple compression methods. Built into Windows, macOS, and Linux. Uses DEFLATE algorithm providing good compression (40-60% reduction) with fast processing. Supports file encryption, split archives, and compression levels. Maximum compatibility across all platforms and devices. Perfect for file sharing, email attachments, web downloads, and general-purpose compression. Industry standard with virtually universal software support including built-in OS tools, mobile apps, and command-line utilities.

RAR

RAR Archive - proprietary format by Eugene Roshal (1993) offering superior compression ratios (10-20% better than ZIP) through advanced algorithms. Popular on Windows with WinRAR software. Supports recovery records for damaged archive repair, solid compression for better ratios, strong AES encryption, and split archives up to 8 exabytes. Excellent for long-term storage, large file collections, and backup scenarios. Common in software distribution and file sharing communities. Requires WinRAR or compatible software (not built into most systems).

7Z

7-Zip Archive - open-source format by Igor Pavlov (1999) providing the best compression ratio available (20-40% better than ZIP, 10-15% better than RAR). Uses LZMA and LZMA2 algorithms with strong AES-256 encryption. Supports huge file sizes (16 exabytes), multiple compression methods, solid compression, and self-extracting archives. Free from licensing restrictions and patent concerns. Perfect for maximizing storage efficiency, software distribution, and backup archives where size matters. Requires 7-Zip or compatible software but offers exceptional space savings.

Unix Formats

TAR

TAR Archive - Tape Archive format from Unix (1979) bundling multiple files and directories into single file without compression. Preserves file permissions, ownership, timestamps, and symbolic links critical for Unix systems. Often combined with compression (TAR.GZ, TAR.BZ2, TAR.XZ) for efficient distribution. Standard format for Linux software packages, system backups, and cross-platform file transfer. Essential for maintaining Unix file attributes. Works with streaming operations enabling network transfers and piping. Foundation of Unix/Linux backup and distribution systems.

GZ/TGZ

GZIP/TGZ - GNU zip compression format (1992) using DEFLATE algorithm, standard compression for Linux and Unix systems. TGZ is TAR archive compressed with GZIP. Fast compression and decompression with moderate ratios (50-70% reduction for text). Single-file compression commonly paired with TAR for multi-file archives. Universal on Unix/Linux systems with built-in 'gzip' command. Perfect for log files, text data, Linux software distribution, and web server compression. Streaming-friendly enabling on-the-fly compression. Industry standard for Unix file compression since the 1990s.

BZ2/TBZ2

BZIP2/TBZ2 - block-sorting compression format by Julian Seward (1996) offering better compression than GZIP (10-15% smaller) at the cost of slower processing. TBZ2 is TAR archive compressed with BZIP2. Uses Burrows-Wheeler transform achieving excellent ratios on text and source code. Popular for software distribution where size matters more than speed. Common in Linux package repositories and source code archives. Ideal for archival storage, software releases, and situations prioritizing compression over speed. Standard tool on most Unix/Linux systems.

XZ/TXZ

XZ/TXZ - modern compression format (2009) using LZMA2 algorithm providing excellent compression ratios approaching 7Z quality. TXZ is TAR archive compressed with XZ. Superior to GZIP and BZIP2 with ratios similar to 7Z but as single-file stream. Becoming the new standard for Linux distributions and software packages. Supports multi-threading for faster processing. Perfect for large archives, software distribution, and modern Linux systems. Smaller download sizes for software packages while maintaining fast decompression. Default compression for many current Linux distributions.

TAR.7Z

TAR.7Z - TAR archive compressed with 7-Zip compression using LZMA/LZMA2 algorithms. Combines TAR's file bundling capabilities with 7Z's superior compression ratios (20-40% better than GZIP). Excellent for maximum space efficiency while maintaining Unix file attributes and permissions. Less common than TAR.GZ or TAR.XZ but offers exceptional compression for large archives. Requires 7-Zip or compatible tools for extraction. Perfect for archival storage, software distribution where size is critical, and backup scenarios requiring maximum compression. Balances TAR's Unix compatibility with 7Z's compression power.

TAR.BZ

TAR.BZ - TAR archive compressed with BZIP compression (single 'z', older variant). Alternative extension for BZIP-compressed TAR archives, functionally identical to TAR.BZ2 but less common. Uses Burrows-Wheeler block-sorting compression for better ratios than GZIP (10-15% smaller). Preserves Unix file permissions and directory structures. Occasionally encountered in legacy systems or as shorthand for TAR.BZ2. Standard tool on Unix/Linux systems. Modern usage typically prefers the explicit .tar.bz2 extension for clarity, but .tar.bz is fully supported by extraction tools.

TAR.LZ

TAR.LZ - TAR archive compressed with LZIP compression using LZMA algorithm in a simpler container format. Offers compression quality similar to XZ but with better error detection and recovery capabilities. Designed for long-term archival with features like data integrity checking and repair. Less common than TAR.XZ but valued for its robustness and data preservation focus. Standard tool 'lzip' available on Unix/Linux systems. Perfect for archival storage requiring data integrity verification, long-term backups, and scenarios where archive corruption recovery is important. Prioritizes reliability over maximum compression.

TAR.LZMA

使用LZMA压缩的TAR归档文件,具有出色的压缩比

TAR.LZO

使用LZO压缩的TAR归档文件,用于快速压缩和解压缩

TAR.Z

使用Unix compress (.Z)的TAR归档文件,用于兼容旧系统

TGZ

TGZ - TAR archive compressed with GZIP compression. Combines TAR's file bundling with GZIP's compression in single extension (.tgz instead of .tar.gz). Standard format for Linux software distribution and source code packages. Maintains Unix file permissions and attributes while reducing size 50-70%. Fast compression and decompression speeds. Universal compatibility on Unix/Linux systems. Perfect for software releases, backup archives, and cross-platform file transfer. Abbreviated form of TAR.GZ with identical functionality and structure.

TBZ2

TBZ2 - TAR archive compressed with BZIP2 compression. Better compression than TGZ (10-15% smaller) but slower processing. Uses Burrows-Wheeler block sorting for excellent text compression. Common in Linux distributions and software packages where size is critical. Maintains Unix file permissions and attributes. Perfect for source code distribution, archival storage, and bandwidth-limited transfers. Abbreviated form of TAR.BZ2 with identical functionality. Standard format for Gentoo Linux packages and large software archives.

TXZ

TXZ - TAR archive compressed with XZ (LZMA2) compression. Modern format offering best compression ratios for TAR archives (better than TGZ and TBZ2). Fast decompression despite high compression. Supports multi-threading for improved performance. Becoming standard for Linux distributions (Arch, Slackware use TXZ). Maintains Unix permissions and symbolic links. Perfect for large software packages, system backups, and efficient storage. Abbreviated form of TAR.XZ representing the future of Unix archive compression.

LZMA

LZMA/TAR.LZMA - Lempel-Ziv-Markov chain Algorithm compression format (2001) offering excellent compression ratios. TAR.LZMA combines TAR archiving with LZMA compression. Predecessor to XZ format using similar algorithm but older container format. Better compression than GZIP and BZIP2 but superseded by XZ/LZMA2. Still encountered in older Linux distributions and legacy archives. Slower compression than GZIP but better ratios (similar to XZ). Modern systems prefer TAR.XZ over TAR.LZMA. Legacy format for accessing older compressed archives from 2000s era.

LZO

LZO/TAR.LZO - Lempel-Ziv-Oberhumer compression format prioritizing speed over compression ratio. TAR.LZO is TAR archive compressed with LZO. Extremely fast compression and decompression (faster than GZIP) with moderate ratios (30-50% reduction). Popular in real-time applications, live systems, and scenarios requiring instant decompression. Used by some Linux kernels and embedded systems. Common in backup solutions prioritizing speed. Perfect for temporary compression, live CD/USB systems, and high-speed data transfer. Trade-off: larger files than GZIP/BZIP2/XZ but much faster processing.

Z

Z/TAR.Z - Unix compress format from 1985 using LZW (Lempel-Ziv-Welch) algorithm. TAR.Z is TAR archive compressed with compress command. Historical Unix compression format predating GZIP. Patent issues (until 2003) led to GZIP replacing it. Legacy format with poor compression by modern standards. Rarely used today except in very old Unix systems and historical archives. If you encounter .Z or .tar.Z files, convert to modern formats (TAR.GZ, TAR.XZ) for better compression and wider support. Important for accessing ancient Unix archives from 1980s-1990s.

专业格式

ISO

ISO Image - ISO 9660 disk image format containing exact sector-by-sector copy of optical media (CD/DVD/Blu-ray). Standard format for distributing operating systems, software installations, and bootable media. Can be mounted as virtual drive without physical disc. Contains complete filesystem including boot sectors, metadata, and file structures. Essential for Linux distributions, system recovery media, and software archives. Used by burning software, virtual machines, and media servers. Universal standard with support in all major operating systems for mounting and burning.

CAB

Cabinet Archive - Microsoft's compression format for Windows installers and system files. Used extensively in Windows setup packages, driver installations, and system updates. Supports multiple compression algorithms (DEFLATE, LZX, Quantum), split archives, and digital signatures. Built into Windows with native extraction support. Common in software distribution for Windows applications, particularly older installers and Microsoft products. Maintains Windows-specific attributes and can store multiple files with folder structures. Part of Windows since 1996.

AR

AR Archive - Unix archiver format (1970s) originally for creating library archives (.a files). Simple format storing multiple files with basic metadata (filename, modification time, permissions). Used primarily for static libraries in Unix development (.a extension). Foundation format for DEB packages (Debian packages are AR archives containing control and data). Minimal compression support (none by default). Essential for Unix library management and Debian package structure. Standard tool 'ar' included on all Unix/Linux systems. Simple and reliable for static file collections.

DEB

Debian Package - software package format for Debian, Ubuntu, and derivative Linux distributions. Contains compiled software, installation scripts, configuration files, and dependency metadata. Used by APT package manager (apt, apt-get commands). Actually a special AR archive containing control files and data archives. Essential format for Debian-based Linux software distribution. Includes pre/post-installation scripts, version management, and dependency resolution. Standard packaging for thousands of Ubuntu/Debian applications. Can be inspected and extracted as regular archive.

RPM

RPM Package - Red Hat Package Manager format for Red Hat, Fedora, CentOS, SUSE, and derivative Linux distributions. Contains compiled software, installation metadata, scripts, and dependency information. Used by YUM and DNF package managers. Includes GPG signature support for security verification. Standard for Red Hat Enterprise Linux ecosystem. Supports pre/post-installation scriptlets, file verification, and rollback capabilities. Essential format for RHEL-based Linux software distribution. Can be extracted as archive to inspect contents without installation.

JAR

JAR档案 - 基于ZIP压缩的Java档案格式,用于打包Java应用程序。包含编译后的Java类(.class文件)、应用程序资源和清单元数据。Java应用程序和库的标准分发格式。支持数字签名以进行代码验证。可以是可执行的(带有Main-Class清单的可运行JAR文件)。非常适合Java应用程序部署、库分发和插件系统。与ZIP工具兼容,但包含Java特定功能。自1996年以来,Java开发和部署的基本格式。

ARJ

ARJ Archive - legacy DOS compression format by Robert Jung (1991). Popular in DOS and early Windows era for its good compression ratio and ability to create multi-volume archives. Supports encryption, damage protection, and archive comments. Largely obsolete today, replaced by ZIP, RAR, and 7Z. Still encountered in legacy systems and old software archives. Requires ARJ or compatible decompression software. Historical format important for accessing old DOS/Windows archives from 1990s. Better converted to modern formats for long-term accessibility.

LHA

LHA档案 - 1988年开发的日本压缩格式(也称为LZH),在日本和Amiga用户中极为流行。使用LZSS和LZHUF压缩算法,提供良好的压缩比。1990年代日本软件分发中常见。支持档案头、目录结构和文件属性。遗留格式,现在大多被现代替代品取代。在复古计算、日本软件档案和Amiga社区中仍然可以遇到。提取需要LHA/LZH兼容软件。对于访问日本和Amiga软件档案非常重要。

CPIO

CPIO Archive - Copy In/Out archive format from Unix (1970s) for creating file archives. Simpler than TAR, often used for system backups and initramfs/initrd creation. Standard format for Linux initial RAM disk images. Supports multiple formats (binary, ASCII, CRC). Better handling of special files and device nodes than TAR. Common in system administration, bootloader configurations, and kernel initrd images. Universal on Unix/Linux systems. Essential for system-level archiving and embedded Linux systems. Works well for streaming operations.

如何转换文件

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常见问题

What is a TAR.LZO file and why is it used for fast compression in Linux systems?

TAR.LZO文件是通过将文件打包到TAR容器中,然后使用LZO算法压缩该TAR而创建的档案。扩展名.tar.lzo或.tzo是常见的。TAR处理目录结构、文件元数据、权限和符号链接,而LZO提供极快的压缩和解压缩,具有适中的压缩比。

与LZMA或XZ等较重的算法不同,LZO专注于速度而非大小节省。它在快速备份/恢复周期比最大压缩更重要的环境中变得流行,例如嵌入式系统、日志归档和实时应用。

Although less common today, TAR.LZO remains relevant in performance-critical Linux workflows, backup tools like LZOP, system snapshots, and older embedded distributions where speed and low CPU usage are essential.

为什么TAR.LZO的速度显著快于TAR.GZ或TAR.XZ?

LZO被设计为一种超快速压缩器,优化了最小的CPU使用,使其非常适合实时或低延迟工作负载。

其算法避免了重的熵编码和大型字典,使得在适度硬件上以每秒数百MB的速度进行压缩和解压缩成为可能。

由于TAR将所有内容固化为单个流,LZO可以高效处理,而无需不断重置上下文,从而显著加快归档操作。

为什么TAR.LZO生成的档案比其他压缩格式更大?

LZO优先考虑速度,而不是压缩比,因此它消除了更深的模式分析和熵建模,这些会生成更小的文件。

它使用轻量级字典系统,无法像LZMA、XZ或bzip2那样有效利用重复。

TAR.LZO适用于时间比磁盘空间更有价值的环境,例如快速备份或嵌入式存储管道。

为什么有些工具无法提取TAR.LZO文件?

并非所有TAR实现都包括内置的LZO支持。许多需要外部工具,如lzop,或在运行tar之前使用lzop -d进行单独解压。

Some newer Linux builds removed native LZO support from tar to simplify dependencies, forcing users to rely on manual extraction steps.

损坏或截断的 LZO 流会导致提取工具提前失败,因为 LZO 缺乏强大的恢复功能。

为什么 TAR.LZO 压缩包有时比原始数据小得多?

LZO 在已经压缩的格式(如 MP4、JPG、PNG、ZIP、MP3 等)上表现不佳,因为这些格式的数据熵较高。

混合内容的压缩包降低了效果,因为 LZO 不进行深度统计建模。

如果压缩器使用快速或默认模式,输出可能会过于优先考虑速度,以至于大小减少变得微乎其微。

TAR.LZO 对于敏感压缩包安全吗?

不安全。TAR.LZO 不包含任何加密或完整性保护,除了 LZO 流中的简单校验和。

攻击者可以在不被检测的情况下修改 TAR 或 LZO 层,除非应用了外部签名或加密。

要保护 TAR.LZO 压缩包,请使用 GPG 加密或将其存储在加密文件容器中。

为什么 TAR.LZO 在提取过程中有时会覆盖文件?

与常规 TAR 压缩包一样,TAR.LZO 会准确恢复存储的路径,并覆盖现有文件,除非提取标志阻止此操作。

Many scripts use tar -x without protective options, mirroring classic Unix behavior.

为了避免覆盖,请提取到单独的目录中,或使用安全标志,例如 --keep-old-files。

Why does TAR.LZO behave differently on various Linux distributions?

一些发行版将 tar 编译为内置 LZO 支持(通过 liblzo2),而其他发行版则省略它以减少依赖性。

硬件加速差异和 CPU 优化可能会影响 LZO 的速度和内存使用。

在缺乏本地支持的系统上,TAR.LZO 需要外部工具,如 lzop 或手动解压管道。

如果 TAR.LZO 损坏,可以修复吗?

LZO 缺乏恢复记录,因此在压缩流发生损坏时,修复变得困难。

少量损坏可能允许部分提取到损坏块,但其余部分将无法访问。

由于 TAR 是顺序的,一旦 LZO 失败,剩余数据在没有完整流完整性的情况下无法访问。

Why was TAR.LZO used in many older Linux backup tools?

备份系统如旧版 rsnapshot 和自定义系统管理员脚本偏爱 LZO,因为它为大数据集提供了极快的周转时间。

LZO 允许备份频繁运行——通常是每小时一次——而不会消耗过多的 CPU 资源。

处理能力有限的嵌入式系统更喜欢 LZO 而不是更重的格式,以实现高效压缩。

TAR.LZO 适合长期数据存储吗?

不理想——它的压缩比现代格式(如 TAR.XZ 或 TAR.ZST)弱,后者节省更多空间并更好地处理损坏。

LZO 算法稳定,但没有内置的完整性或错误恢复功能以确保归档的可靠性。

TAR.LZO 最适合短期备份、高速管道和临时系统快照。

TAR.LZO 适合日常文件分发吗?

不适合。大多数用户缺乏 LZO 的内置工具,使得 ZIP、TAR.GZ 或 TAR.XZ 等格式更易于访问。

Windows and macOS often require third-party utilities to extract LZO-compressed TAR files.

TAR.LZO is better suited for advanced Linux users, container pipelines, or embedded systems.

TAR.LZO 与 TAR.ZST 或 TAR.XZ 相比如何?

TAR.ZST(Zstandard)比 TAR.XZ 快得多,并且在保持出色速度的同时提供比 TAR.LZO 更好的压缩。

TAR.XZ 提供更高的压缩比,但比 LZO 慢得多。

TAR.LZO 处于中间位置——比 gzip 快,比 XZ 快得多,但压缩较弱且缺乏现代功能。

TAR.LZO 被认为过时吗?

Mostly yes. Modern Linux systems increasingly favor Zstandard for high-speed compression and XZ for high-ratio compression.

LZO 仍然在需要最小 CPU 开销的小众环境中使用,但主流支持正在下降。

它的年龄体现在有限的工具、较弱的压缩和缺乏对多核系统的优化上。

今天应该使用 TAR.LZO 吗?

如果您需要极快的压缩和解压缩,且 CPU 使用率最低——特别是对于日志、快照或嵌入式设备,请使用 TAR.LZO。

对于一般数据压缩,TAR.GZ 或 TAR.ZST 提供更好的兼容性和整体性能。

对于长期归档或最大空间节省,选择 TAR.XZ 或 TAR.ZST,而不是 TAR.LZO。