Scientific File Converterとは？

Convert crystallographic and molecular structure files without desktop software. This scientific file converter supports CIF, PDB, XYZ, MOL, MOL2, SDF, POSCAR, XSF, JSON, SMILES, STL, and OBJ in one place — upload a file, pick input and output formats, and download the result. Popular workflows include CIF to PDB for protein viewers, XYZ to MOL for cheminformatics pipelines, SMILES to MOL for 2D structures, SDF to PDB for docking prep, and PDB to STL or OBJ for 3D printing previews. Auto-detect reads your file extension and content so you rarely need to guess the format. Everything runs locally in your browser: files are never uploaded to a server, which keeps proprietary structures and unpublished data private. The converter preserves atom coordinates and unit-cell metadata where the target format allows. A supported-conversion matrix on the page lists every input→output pair currently available.

Scientific File Converterの使い方

Upload a structure file (CIF, PDB, XYZ, MOL, MOL2, SDF, POSCAR, XSF, JSON, or SMILES) via drag-and-drop or Browse.
Confirm the detected input format or choose it manually from the dropdown.
Select the output format — e.g. CIF to PDB, PDB to OBJ, or SMILES to MOL.
Click Convert and wait for the progress bar to finish.
Download the converted file or copy text output for JSON, XYZ, and similar formats.

よくある使用例

Converting CIF crystal structures to PDB for PyMOL or Chimera
Exporting SMILES to MOL for RDKit or Open Babel pipelines
Turning PDB coordinates into STL/OBJ meshes for 3D preview
Converting VASP POSCAR files to XYZ or JSON for scripting
Preparing SDF compound libraries as PDB for docking workflows

よくある質問

Which conversions are supported?: CIF exports to PDB, XYZ, MOL, MOL2, SDF, POSCAR, XSF, and JSON. PDB converts to CIF, STL, and OBJ. XYZ to PDB and MOL; MOL to SDF; MOL2 to PDB; SMILES to MOL, PDB, and XYZ; SDF to PDB and MOL. See the matrix on the tool page for the full list.
Are my files uploaded to a server?: No. Parsing and conversion run entirely in your browser via a Web Worker. Your structures never leave your device.
How does SMILES conversion work?: SMILES strings are parsed into a molecular graph and laid out in 2D with z = 0. This covers the common organic subset; aromaticity, stereochemistry, and complex inorganic SMILES may need a dedicated cheminformatics toolkit.
What is PDB to STL/OBJ used for?: These exports build a low-poly ball-and-stick mesh from atom coordinates — useful for quick 3D previews or prototyping, not for publication-quality molecular surfaces or production 3D printing without further cleanup.
What is the maximum file size?: Files up to 50 MB are accepted. Very large structures with mesh output (STL/OBJ) use more memory; tens of thousands of atoms may be slow on low-end devices.

その他の科学ツール

Scientific File Converterとは？

Scientific File Converterの使い方

Upload a structure file (CIF, PDB, XYZ, MOL, MOL2, SDF, POSCAR, XSF, JSON, or SMILES) via drag-and-drop or Browse.

Confirm the detected input format or choose it manually from the dropdown.

Select the output format — e.g. CIF to PDB, PDB to OBJ, or SMILES to MOL.

Click Convert and wait for the progress bar to finish.

Download the converted file or copy text output for JSON, XYZ, and similar formats.

よくある質問

Which conversions are supported?

CIF exports to PDB, XYZ, MOL, MOL2, SDF, POSCAR, XSF, and JSON. PDB converts to CIF, STL, and OBJ. XYZ to PDB and MOL; MOL to SDF; MOL2 to PDB; SMILES to MOL, PDB, and XYZ; SDF to PDB and MOL. See the matrix on the tool page for the full list.

Are my files uploaded to a server?

No. Parsing and conversion run entirely in your browser via a Web Worker. Your structures never leave your device.

How does SMILES conversion work?

SMILES strings are parsed into a molecular graph and laid out in 2D with z = 0. This covers the common organic subset; aromaticity, stereochemistry, and complex inorganic SMILES may need a dedicated cheminformatics toolkit.

What is PDB to STL/OBJ used for?

These exports build a low-poly ball-and-stick mesh from atom coordinates — useful for quick 3D previews or prototyping, not for publication-quality molecular surfaces or production 3D printing without further cleanup.

What is the maximum file size?

Files up to 50 MB are accepted. Very large structures with mesh output (STL/OBJ) use more memory; tens of thousands of atoms may be slow on low-end devices.