Welcome to ChemToolsHub

A comprehensive platform for chemical calculations and structure conversion tools. Explore our collection of free online tools.

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Atomic Properties Calculator

Calculate and view detailed properties of chemical elements using their atomic symbols.

pH Calculator

Calculate pH values from H+ concentration, pOH, or acid/base solutions. Includes visual pH scale and detailed results.

3D Conformer Generator

Generate and visualize 3D molecular conformations from SMILES notation. This tool helps you explore different possible 3D arrangements of your molecules.

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Structure Converter

Convert between different chemical structure formats including SMILES, InChI, IUPAC, MOL file, and 2D structure images.

Chemical Structure Editor

Draw, edit, and convert chemical structures. Supports multiple formats including SMILES, MOL, InChI, and image export. Features structure recognition from images.

Molecular Weight Calculator

Quickly calculate molecular weight of chemical formulas, supporting complex organic and inorganic compounds

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Molecular Descriptor Calculator

Calculate and visualize molecular descriptors including molecular weight, LogP, TPSA, and other important properties for chemical compounds

Solution Preparation Calculator

Calculate required amounts of solute and solvent for preparing solutions of specific concentrations. Supports molarity, molality, mass percentage, and PPM.

Structure Similarity Calculator

Compare chemical structures and calculate similarity scores using different fingerprint methods and similarity metrics.

Phase Diagram Calculator

Calculate and visualize phase states of substances at different temperatures and pressures, including critical points, triple points, and phase boundaries

Thermodynamics Calculator

Calculate thermodynamic properties including enthalpy, entropy, Gibbs free energy, and heat capacity. Visualize property changes with temperature.

Chemical Equation Balancer

Balance chemical equations automatically. Support complex redox reactions and get stoichiometric coefficients.