Convert CIF to PDB Free — Online & Instant

Convert CIF to PDB — Free Online

Fast, secure, no software needed.

📁 Drag & drop your file here

or click to browse • Max 100MB

✅ Free • ⚡ Instant • 🔒 Secure • 💻 No install

How to Convert CIF to PDB

Converting .cif files to .pdb is fast and simple with OpenAnyFile. CIF is a scientific format: Crystallographic Information File PDB is a scientific format: Protein Data Bank file

Upload your .cif file to OpenAnyFile
Select PDB (.pdb) as the target format
Click "Convert" and wait for processing
Download your converted .pdb file

Why Convert CIF to PDB?

There are several reasons to convert from .cif to .pdb:

Compatibility: .pdb may be more widely supported by software and devices
File size: Converting between formats can reduce file size for easier sharing
Editing: PDB may offer better editing capabilities for your workflow
Sharing: Recipients may prefer .pdb files for their daily use

About CIF Format

Crystallographic Information File Category: Scientific. Extension: .cif. Created by: IUCr.

About PDB Format

Protein Data Bank file Category: Scientific. Extension: .pdb. Created by: wwPDB.

Frequently Asked Questions

How do I convert .cif to .pdb?

Upload your .cif file to OpenAnyFile, select PDB as the target, and download the converted file.

Is CIF to PDB conversion free?

OpenAnyFile offers free file analysis. Conversion may require a one-time payment depending on the file.

Will I lose quality converting .cif to .pdb?

OpenAnyFile preserves maximum quality during conversion. Some format-specific features may not transfer between different file types.

Can I convert .pdb back to .cif?

Yes, you can convert .pdb to .cif using OpenAnyFile as well.

🔓 Unlock Full File Access

Unlimited conversions, batch processing & priority support.

Upgrade to Pro — $12/mo

Cancel anytime.