Published by biochem_fan

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About NDKmol - molecular viewer

1. NDKmol supports most of common representations for molecules, such as ribbon, trace, stick, sphere and line.

2. To load other PDB files, please put the file in "PDB" directory of the SD card and select "Open" command in the MENU.

3. NDKmol itself is licensed under GNU Lesser General Public License as follows.

4. NDKmol also supports symmetry operations; biological assemblies and crystal packing can be displayed.

5. You can search and download structures from RCSB PDB and NCBI Pubchem.

6. To zoom or translate the molecule, press MENU button in your phone/tablet and select the mode.

7. You can also download structures directly from RCSB PDB and NCBI PubChem web server.

8. You can view three dimensional structures of proteins, nucleic acids and small molecules.

9. When launched, NDKmol automatically loads Porin (PDBID: 2POR) as an example.

10. Select "Search and Download" in the menu.

11. NDKmol is a molecular viewer for Android.

NDKmol Customer Insights

1. It looks really cool, but for what ever reason I can't find the UI If I could find the UI the rating would be dramatically higherHow come there is no answer from the developer on the menu issue? I cannot just open up an on-screen keyboard to access a menu function as someone suggested for their tablet.

2. Props to you Dev! There are some minor things (would love an option drawer instead of the option circle and some metal ions wouldn't show up) but very nice overallIts interesting, but not very usable.

3. The UI is strangely hidden, and any molecule I try to download from the PubChem just gives me an error and tells me there is no 3D view of the molecule available.

4. App is useless on my S6.Updated android (10.1) menu gone:( any fix?I really liked this app and it was really useful to me even during my Mres project.

5. Needs a so-called menu button which Samsung phones lack.

6. Every time I try to download a structure, it gives me an "error occured while downloading a structure".

7. i love it how they managed app size + 3d view + additional view settings in simplest way.

8. But once I switched to a new phone (Sony Xperia XZ Premium), I cannot use this app anymore.

9. How foolish to make this app without a menu in it!This is the best application i have ever installed.

10. good job guys.Only works with some phone models.

11. I hope there is a fix for that.Android needed a pdb viewer and this one is far better than I ever would have expected.

Steps to Troubleshoot & Fix NDKmol Issues

1. Fix NDKmol Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart NDKmol: Restarting the app will resolve most errors.
  2. Update the NDKmol App. Here is how:
    1. On Android goto PlayStore » Search for "NDKmol" » Open NDKmol - molecular viewer » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for NDKmol » click "UPDATE".
  3. Clear NDKmol - molecular viewer app cache: Clearing cached data will force your app to retrieve the latest data directly from NDKmol servers.
    1. On Android, goto Settings » Apps » Select "NDKmol - molecular viewer" » click Storage » click "Clear Cache".
  4. Check NDKmol app permissions. If any of these permissions required to use your device's features are disenabled, NDKmol might not work.
  5. Uninstall and reinstall NDKmol. If nothing else has worked, completely uninstall NDKmol then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing NDKmol not working


2. Fix NDKmol Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make NDKmol be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to NDKmol not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, NDKmol may not be able to connect to the Internet when running in the background.

Reported Issues