What Bondline is
Bondline is a notebook made for organic chemistry. Instead of switching between a notes app, a drawing program, a question bank and a stack of spectra, you write notes, draw structures and curly-arrow mechanisms, and practise, all in one place. It runs in any browser, installs like an app on phones and laptops, and works offline.
Who makes it
Bondline is made by an independent developer in Malaysia. There's no big company or investors behind it: just the aim of making organic chemistry easier to learn and less of a juggling act.
What we promise
- The core stays free. Notes, drawing, the reaction library, practice, sync and classes are free. Bondline Pro adds optional extras for exam season.
- Your notes are yours. No ads, no tracking cookies, and we don't sell or share your data. You can use Bondline without an account at all. See the privacy policy.
- It works anywhere. On a phone in the library, a laptop in a lecture, or offline on the train.
For lecturers and teachers
Bondline's Classes let you set work and follow your students' progress for free. Write your own quizzes (multiple choice, true or false, short answer and numbers, with structures and equations) or pick from over a thousand of Bondline's questions across seven syllabuses. Set them as practice or timed tests, print them as worksheets with answer keys, or play them live on the projector while students answer on their phones.
Students join with a code, and students without an email address can join with just a first name. You see each student's scores, which questions the class got wrong and which topics are weakest, never their private notes. Invite a co-teacher to share a class, and link a shared notebook so every student gets your notes. Lecture mode turns any note into slides, with curly arrows appearing one click at a time, and notes export to PowerPoint.
Verified teachers get Bondline Pro free; ask from Classes in the app. Tuition centres can add class passes so their students get Pro too.
If you'd like to try Bondline with a course, need a department setup, or have ideas for questions and topics, we'd love to hear from you.
Get in touch
Questions, bug reports and ideas are all welcome at bondlinenotes@gmail.com. See the contact page for the quickest way to reach us about each topic.