InDraw
Professional Chemical Drawing, Supercharged by AI
Create publication-ready structures and reactions, recognize chemical images, and predict molecular properties—all in one editor
World's First to Realize IUPAC Chinese Chemical Nomenclature Technology
China's First & World's 4th to Master IUPAC English Chemical Nomenclature Technology
World's First to Master the HELM Macromolecule Editing Language for Polysaccharides
Globally Leading Precision in Chemical Structure Image Recognition
World's First to Achieve Chemical Reaction Equation Image Recognition
Diverse Chemical Structure Drawing Methods
High-accuracy image-to-structure conversion:
Powered by high-precision image recognition technology, it converts images into editable chemical structures with one click, achieving up to 99% accuracy across benchmark datasets including CLEF, UOB, JPO, and USPTO.
Smooth manual drawing experience:
With 100+ intelligent shortcuts and auto-beautification, structure drawing stays fast and fluent.
Convert IUPAC names/common names/CAS numbers to structures:
Supports Chinese and English inputs. Enter any valid identifier to generate structures instantly.
Diverse Professional Calculation Functions
Chemical property calculation:
One-click calculation for key basic properties such as molecular weight and related indicators.
Reaction stoichiometry calculation:
Automatically calculates reactant and product quantities to reduce manual effort and calculation errors.
Multiple parameter prediction tools:
Built-in pKa, NMR, and ADMET tools provide an integrated workflow without switching software.
Seamless Compatibility
Compatible with ChemDraw:
Supports seamless two-way copy and paste, with CDX file import and export.
Compatible with MS Office / WPS:
Insert structures directly into Office documents and edit them again anytime.
Connected to external databases:
Integrates with Reaxys, PubChem, and more for structure-based external search.
3D Visualization
Multiple access methods:
Supports 2D-to-3D conversion and importing SDF, PDB, and other structure formats.
Custom views:
Freely adjust rendering style, color theme, and viewing angle for analysis and presentation.
High-quality output:
Export high-definition images and animations to satisfy publication and presentation needs.
Why Choose InDraw?
chemdraw
- Legal risks associated with using pirated versions
- Prohibitively expensive
- Lacks AI-powered image recognition
- Only supports English IUPAC names
- There have been no major version updates for many years
- Only supports English, with a traditional interface
InDraw
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Genuine full licensing, zero copyright risks, and independent intellectual property rights
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Most features are free, with only premium functions paid; high cost-performance ratio
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High-precision AI-powered image recognition with industry-leading accuracy
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The world's first tool supporting bidirectional conversion between Chinese/English IUPAC names and structures
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Regular feature updates and prompt technical support
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Supports both Chinese and English with a modern user interface
Choose the Best InDraw Solution for You
For purchase assistance, please contact Customer Service
InDraw Free
InDraw Professional
$96
/user/month
$960
/user/year
InDraw
Basic Drawing Functions
✅
✅
Reaction Stoichiometry Calculation
✅
✅
tPSA、cLogP
✅
✅
AI Image Recognition
10 times/day
Unlimited
pKa Prediction
10 times/day
Unlimited
Reaxys Integration
10 times/day
Unlimited
NMR Prediction
10 times/day
Unlimited
Copy to Word
Watermarked
Clean
Export 3D Images/Animations
Watermarked
Clean
Hide Ads
❌
✅
Custom Templates
❌
✅
Custom HELM Monomers
❌
✅
Custom Color Palettes
❌
✅
InDraw for Excel
❌
✅
Login-Free Period
1 week
1 year
InSequence
DNA/RNA/AA sequence editing
✅
✅
Feature detection and annotation
✅
✅
Primer design
✅
✅
Sequence alignment
✅
✅
InTable
DOE
✅
✅
IC50/EC50 calculation
✅
✅
InDraw for InTable-Structure drawing
✅
✅
InDraw for InTable-Structure search
✅
✅
InDraw for InTable-Advanced formula calculation
✅
✅
InDraw for InTable-Basic format conversion
10 times
Unlimited
InDraw for InTable-Complex format conversion
10 times
Unlimited
InDraw for InTable-Batch calculation
10 times
Unlimited
InDraw publications
Nature Communications
Li J, Li M, Yang Q, Luo S. ReactionSeek: LLM-powered literature data mining and knowledge discovery in organic synthesis. Nat Commun. 2026 Mar 2;17(1):3356. doi: 10.1038/s41467-026-70180-1. PMID: 41771908; PMCID: PMC13066619.
Journal of Medicinal Chemistry
Wang L, Zheng Y, Li D, Yang J, Lei L, Yan W, Zheng W, Tang M, Shi M, Zhang R, Cai X, Ni H, Ma X, Li N, Hong F, Ye H, Chen L. Design, Synthesis, and Bioactivity Evaluation of Dual-Target Inhibitors of Tubulin and Src Kinase Guided by Crystal Structure. J Med Chem. 2021 Jun 24;64(12):8127-8141. doi: 10.1021/acs.jmedchem.0c01961. Epub 2021 Jun 3. Erratum in: J Med Chem. 2022 Sep 8;65(17):11889. doi: 10.1021/acs.jmedchem.2c01201. PMID: 34081857.
Journal of Medicinal Chemistry
Cheng Z, Zhang Y, Du L, Wang W, Chai X, He M, Zhang H, Wu D, Lu J, Zhang S, Feng B, Yang L, Liu M, Lu W. Subtle Structural Modifications Spanning from EP4 Antagonism to EP2/EP4 Dual Antagonism: A Novel Class of Thienocyclic-Based Derivatives. J Med Chem. 2025 Jan 23;68(2):1587-1607. doi: 10.1021/acs.jmedchem.4c02241. Epub 2025 Jan 6. PMID: 39757828.
iScience
Shi M, Wang F, Lu Z, Yin Y, Zheng X, Wang D, Cai X, Jing M, Wang J, Chen J, Jiang X, Yu W, Li X. Elucidating the linagliptin and fibroblast activation protein binding mechanism through molecular dynamics and binding free energy analysis. iScience. 2024 Nov 13;27(12):111368. doi: 10.1016/j.isci.2024.111368. PMID: 39660049; PMCID: PMC11629334.
Plant Communications
Shi H, Naqvi NI, Kou Y. Recent advances in targeted fungicides and immune elicitors for rice blast management. Plant Commun. 2024 Sep 9;5(9):101032. doi: 10.1016/j.xplc.2024.101032. Epub 2024 Jul 2. PMID: 38961626; PMCID: PMC11412917.
Environmental Science & Technology
Ye Q, Ding Y, Ding Z, Li R, Shi Z. Unified Modeling Approach for Quantifying the Proton and Metal Binding Ability of Soil Dissolved Organic Matter. Environ Sci Technol. 2023 Jan 10;57(1):831-841. doi: 10.1021/acs.est.2c08482. Epub 2022 Dec 27. PMID: 36574384.
Journal of Agricultural and Food Chemistry
Zheng B, Wen H, Zheng B, Xiang X, Zhu C. Dietary Carbohydrates and the Intestinal Barrier: Emerging Insights into NF-κB Modulation and Health Outcomes. J Agric Food Chem. 2025 Aug 27;73(34):21264-21282. doi: 10.1021/acs.jafc.5c06354. Epub 2025 Aug 19. PMID: 40827561.
International Journal of Biological Sciences
Zhang Y, Yu C, Peng C, Peng F. Potential Roles and Mechanisms of Curcumin and its Derivatives in the Regulation of Ferroptosis. Int J Biol Sci. 2024 Sep 9;20(12):4838-4852. doi: 10.7150/ijbs.90798. PMID: 39309443; PMCID: PMC11414380.
