Quickly compute the amino acid composition of any protein sequence with our free, user‑friendly online calculator.

Determine the molar and mass extinction coefficients of any protein sequence instantly. Free, precise UV–Vis analysis online with our Protein Extinction Coefficient Calculator at ScienceCodons.

Calculate your protein's net charge & isoelectric point online in seconds with our free Protein Charge Calculator—no signup, adjustable pH slider & exportable data.

Powered by the industry-standard Open Babel for fast and accurate results. Our Chemical Molecule File Format Converter makes it effortless to switch between the most commonly used chemical structure ...

Convert DNA sequences to mRNA in seconds. Free, web‑based DNA→mRNA transcription tool for researchers, students, and educators. Try it now!

Convert Structure Data Files (SDF) to any popular chemical format instantly and for free. Our all-in-one, browser-based SDF file converter handles SMILES, PDB, MOL2, and more—no sign-up required.

Convert between PDB, SDF, MOL2, SMILES, and 100+ other formats. Files are processed securely and deleted from our servers after 5 minutes. Harness the power of OpenBabel directly in your browser—no ...

Convert mRNA sequences into accurate amino acid chains instantly—our free, ultra‑fast mRNA to amino acid converter empowers researchers, students, and biotech pros with no signup required.

CIF to PDB Converter Convert mmCIF files to the classic PDB format with 3D visualization and secure processing Convert CIF to PDB Upload File Paste Data Drag & drop your CIF file here or click to ...

Calculate your protein's net charge & isoelectric point online in seconds with our free Protein Charge Calculator—no signup, adjustable pH slider & exportable data.

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Seamlessly reformat your PHYLIP sequence alignments into the formats you need—FASTA, Nexus, Clustal, JSON, and more—with just a few clicks. Our online PHYLIP Alignment Converter combines speed, ...