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MolTouch
A touch-friendly browser editor for drawing chemical structures and saving MOL files or PNG images.
License unclear. 10 of 65 checklist features confirmed.
Main canvas
Default drawings
- The editor labels nitrogen blue and oxygen red by default.
- The exported PNGs retain the full transparent canvas.
- The MOL save endpoint returned HTTP 500 during the test.
- The cholesterol import panel obscured part of the flat projection.
- Several requested features had no discoverable controls and were not tested.
Facts
- Latest version
- v1.0.0
- Version we tested
- v1.0.0
- Runs on
- Browser
- License
- Homepage claims open source; source headers reserve all rights, with no license grant identified.
- Price
- Not published
- Relies on
- No third-party engine found. Own atom/bond model and Canvas renderer; external scripts supply interface controls.
- Draws with
- HTML5 Canvas 2D; PNG output uses canvas.toDataURL.
- Chemistry from
- In-house JavaScript atom/bond model and MOL-file parser/writer.
- Interface
- HTML/CSS with jQuery 1.4.2, jQuery.radmenu, and Tinybox.
- Main language
- JavaScript
- Other languages
- HTML/CSS provide interface markup and styling; PHP handles downloads.
- Renderer
- Original: MolTouch Canvas renderer
- Third-party licenses
- MIT option for jQuery/Sizzle (GPL-2.0 alternative); other bundled UI licenses unconfirmed.
- Homepage claims open source, but public source headers reserve all rights without identifying a license.
- Latest release announcement is dated 2014-03-05; documented browser tests cover historical versions.
- MOL/PNG download forms submit drawings to server-side PHP handlers.
In use
Screenshots from our test of this version.

Single, double and triple bonds
Single and double bonds in a molecular drawing.

Wedge, hash and wavy bonds
Solid and hashed wedges in a molecular drawing.

Ring tools
Fused rings in a molecular drawing on the canvas.

MOL and SDF
SDF file contents and its structure in the editor.

High-resolution PNG
Exported PNG of a molecular structure.
Features
- Tested by running it
- Seen in the app
- The manual says yes
- Partly, with the reason shown
- Not supported
- Not established, which is not the same as no
Select a mark for its proof. A filled mark opens our screenshot, or the manual if the check left nothing to picture. A ring opens the manual.
Drawing structures
- Partly: Bond orders editable; blank-canvas mouse drag produced nothing. Opens the screenshot.Single, double and triple bondsBond orders editable; blank-canvas mouse drag produced nothing.apricot.cis.ibaraki.ac.jp
- Partly: Solid and hashed wedges work; no wavy option observed. Opens the screenshot.Wedge, hash and wavy bondsSolid and hashed wedges work; no wavy option observed.apricot.cis.ibaraki.ac.jp
- No: Bond menu supports only single, double, triple, wedge, and hash. Opens the cited page.Dative, hydrogen and quadruple bondsBond menu supports only single, double, triple, wedge, and hash.apricot.cis.ibaraki.ac.jp
- Not establishedChoose double-bond side
- Partly: Imported rings display; no dedicated ring palette found. Opens the screenshot.Ring toolsImported rings display; no dedicated ring palette found.apricot.cis.ibaraki.ac.jp
- Not establishedChair and Haworth rings
- Not establishedChain tool
- Not establishedTemplate library
- Not establishedSave your own templates
- Not establishedGroup abbreviations
- Partly: Only element symbols are retained; isotope and charge fields are zeroed. Opens the cited page.Charges, isotopes and atom labelsOnly element symbols are retained; isotope and charge fields are zeroed.apricot.cis.ibaraki.ac.jp
- Not establishedRadicals and lone pairs
- Yes, according to the manual: Typed characters replace a selected atom label when Enter is pressed. Opens the cited page.Keyboard drawingTyped characters replace a selected atom label when Enter is pressed.apricot.cis.ibaraki.ac.jp
- Partly: Rotation and scaling supported; no lasso or flip controls. Opens the cited page.Lasso select and transformsRotation and scaling supported; no lasso or flip controls.apricot.cis.ibaraki.ac.jp
- Not establishedTilt drawings in perspective
Reactions and mechanisms
- Not establishedReaction arrows
- Not establishedCurved mechanism arrows
- Not establishedMachine-readable reactions
- Not establishedAtom mapping
- Not establishedOrbitals and symbols
Figures and layout
- Not establishedRich text captions
- Not establishedShapes, brackets and curves
- Not establishedAlign and distribute
- Not establishedGroup and ungroup
- Not established2D structure cleanup
- Not establishedJournal drawing styles
- Not establishedReusable custom styles
- Not establishedColor control
- No: Renderer lacks user-controlled atom or bond background highlighting. Opens the cited page.Color highlightingRenderer lacks user-controlled atom or bond background highlighting.apricot.cis.ibaraki.ac.jp
- Not establishedPage layout and multipage
- Not establishedImported pictures
- Not establishedTLC plates and tables
Chemistry intelligence
- Yes, tested by running it: Invalid bond order produced a red underline on nitrogen. Opens the cited page.Structure checkingInvalid bond order produced a red underline on nitrogen.apricot.cis.ibaraki.ac.jp
- Not establishedR/S and E/Z labels
- Not establishedFormula and mass
- Not establishedProperty estimates
- Not establishedName to structure
- Not establishedStructure to name
- Not establishedNMR prediction
- Not establishedR-groups and query structures
- Not establishedPolymers and repeat units
- Not establishedPeptides and nucleic acids
- Not establishedImage to structure
- Partly: Submits ChemSpider searches; no returned structures are fetched into the editor. Opens the cited page.Online structure lookupSubmits ChemSpider searches; no returned structures are fetched into the editor.apricot.cis.ibaraki.ac.jp
- No: SDF rendered flat; no rotatable 3D view found. Opens the cited page.3D model viewSDF rendered flat; no rotatable 3D view found.
- Not establishedCrystal structures
Files and exchange
- Not establishedCDXML import and export
- Not establishedCDX import and export
- Partly: MOL and SDF import; MOL save returned blank response. Opens the screenshot.MOL and SDFMOL and SDF import; MOL save returned blank response.apricot.cis.ibaraki.ac.jp
- No: SMILES file displayed as text without a structure. Opens the cited page.SMILESSMILES file displayed as text without a structure.
- Not establishedInChI
- Not establishedRXN files
- Not establishedSVG export
- Not establishedPDF export
- Partly: Exports transparent 1176 × 833 PNG at 72 dpi. Opens the screenshot.High-resolution PNGExports transparent 1176 × 833 PNG at 72 dpi.apricot.cis.ibaraki.ac.jp
- Not establishedPaste to and from ChemDraw
- Not establishedEditable in Word or PowerPoint
- Not establishedWindows Office OLE
APIs and automation
- Not establishedPython API
- Not establishedJavaScript or TypeScript API
- Not establishedCommand-line tool
- Not establishedAI agent control
- Not establishedBuilt-in AI assistant
Embedding and extension
- Not establishedPlugins
- Not established: No embedding documentation; hosted framing headers do not block embedding.Embed in your own appNo embedding documentation; hosted framing headers do not block embedding.apricot.cis.ibaraki.ac.jp


