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Compress & Decompress Files in .NET & Java

Use Conholdate.Total APIs to programmatically compress & decompress files, protect archives with passwords, and work with popular formats like ZIP, 7z & RAR. Or try our free online file compressor.

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Powerful Document & File Compression Libraries

Conholdate.Total for .NET & Java gives developers full control over file compression and archiving. Create, compress, and extract archives, apply strong AES encryption, and manage large files with parallel compression. The API supports popular formats including ZIP, RAR, 7z, GZIP, and many more — all without relying on Microsoft Office or external libraries.

Key Features for Developers

Compress & Decompress Archives

Create archives from single or multiple files, compress entire directories while preserving structure, extract archives, and remove entries when needed.

Wide Format Support

Work with major formats including ZIP, TAR, GZIP, LZ, BZ2, RAR, WIM, 7z, CAB, and more. Load and save capabilities provide flexibility for diverse use cases.

Secure File Encryption

Protect archives using AES 128, 192, or 256-bit encryption or ZipCrypto. Encrypt entire archives or individual entries with user-defined passwords.

Archive Editing

Update existing archives easily — add new files, remove old ones, or rename entries without rebuilding the whole archive.

Parallel Compression for Speed

Speed up compression of large files with multi-core parallel processing. Handle 4GB+ Zip64 archives with virtually unlimited file counts.

Cross-Platform Development

Build apps in .NET (C#, VB.NET) or Java without relying on Microsoft Office or external tools. Compatible with Windows, Linux, and cloud environments.

Seamless Integration

Designed to fit into your workflow. Use with Visual Studio, IntelliJ IDEA, Eclipse, or integrate into automated CI/CD pipelines.

Developer-Friendly APIs

Clean, intuitive APIs with minimal boilerplate code. Focus on your business logic while the library handles the heavy lifting of compression.

FAQs

Can I try file compression without coding?

Yes. You can explore compression features instantly using our Free Online Document Optimizer.

What file formats are supported?

Conholdate.Total supports ZIP, RAR, 7z, TAR, GZIP, CAB, WIM, and more, with full load & save options.

Does compression reduce file quality?

No. Compression reduces file size while keeping your original file quality intact.

Can I handle large files?

Absolutely. The API supports Zip64 archives (4GB+) and parallel compression for high performance.

Is this API suitable for enterprise apps?

Yes. Conholdate.Total is designed for professional .NET & Java applications requiring secure, scalable compression.

Can I add or remove files from an existing archive?

Yes. You can update archives by adding, deleting, or renaming entries without starting from scratch.

Do I need Microsoft Office or third-party tools to run this API?

Not at all. Conholdate.Total is a standalone API that doesn’t require Office or external software.

How easy is it to integrate with my project?

Very easy. The API works with standard .NET and Java environments and integrates smoothly with IDEs like Visual Studio, IntelliJ, and Eclipse.

Can I use the API in cloud or container environments?

Yes. Conholdate.Total works in Docker containers, virtual machines, and popular cloud platforms, making it ideal for scalable deployments.

Support and Learning Resources

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