SMILES, merupakan singkatan bahasa Inggris dari simplified molecular-input line-entry system ("sistem entri-baris input-molekuler yang disederhanakan), yaitu suatu spesifikasi dalam bentuk notasi baris untuk menggambarkan struktur spesies kimia menggunakan stringASCII pendek. String dari SMILES dapat diimpor oleh kebanyakan penyunting molekul untuk dikonversi kembali menjadi lukisan model dua dimensi atau tiga dimensi dari suatu molekul.
SMILES dapat dikonversi kembali ke representasi 2 dimensi menggunakan algoritme Structure Diagram Generation (Helson, 1999). Konversi ini kadang rancu. Konversi ke representasi 3 dimensi diperoleh dengan pendekatan minimalisasi energi. Ada banyak peranti konversi yang dapat didownload atau berbasis web.
Anderson, E.; Veith, G. D.; Weininger, D. (1987). SMILES: A line notation and computerized interpreter for chemical structures. Duluth, MN: U.S. EPA, Environmental Research Laboratory-Duluth. Report No. EPA/600/M-87/021.
Helson, H. E. (1999). "Structure Diagram Generation". Dalam Lipkowitz, K. B.; Boyd, D. B. Rev. Comput. Chem. 13. New York: Wiley-VCH. hlm. 313–398. doi:10.1002/9780470125908.ch6.
Weininger, David (February 1988). "SMILES, a chemical language and information system. 1. Introduction to methodology and encoding rules". Journal of Chemical Information and Modeling. 28 (1): 31–6. doi:10.1021/ci00057a005.
Weininger, David; Weininger, Arthur; Weininger, Joseph L. (May 1989). "SMILES. 2. Algorithm for generation of unique SMILES notation". Journal of Chemical Information and Modeling. 29 (2): 97–101. doi:10.1021/ci00062a008.
Weininger, David (August 1990). "SMILES. 3. DEPICT. Graphical depiction of chemical structures". Journal of Chemical Information and Modeling. 30 (3): 237–43. doi:10.1021/ci00067a005.
NCI/CADD Chemical Identifier Resolver–resolves or generates SMILES from chemical names, CAS Registry Numbers, InChI/InChIKey and many other chemical structure file formats
Instant JChemDiarsipkan 2007-11-12 di Wayback Machine. by ChemAxon–desktop application for storing/generating/converting/visualizing/searching SMILES structures, particularly batch processing; personal edition free
Smormo-Ed–a molecule editor for Linux which can read and write SMILES
InChI.info–an unofficial InChI website featuring on-line converter from InChI and SMILES to molecular drawings
Balloon–A free program for 3D coordinate generation and conformational analysis.
IndigoDiarsipkan 2015-02-11 di Wayback Machine.–an open-source cross-platform cheminformatics library with a plugin for IUPAC-compliant molecule and reaction 2D structural formula rendering.
Open Babel–an open-source chemical toolbox allowing anyone to search, convert, analyze, or store biochemical data.
Bioclipse–a free and open source workbench for the life sciences