---
title: Conformer
emoji: 🧬
colorFrom: gray
colorTo: blue
sdk: static
app_file: index.html
pinned: false
license: mit
short_description: AI molecular workbench for strings
---

# Conformer

A browser workbench for the BRAID molecular line notation and the BRAIDBERTa /
DeepBERTa encoders. Load molecules, convert between representations, draw
structures, compute descriptors, benchmark tokenisations, embed and compare
encoders, export datasets.

Nothing to install. Structure parsing, drawing, descriptors and fingerprints run
entirely in your browser via RDKit's WebAssembly build, so most of the workbench
works with no server at all.

BRAID conversion and the encoders need Python — `braids.codec` depends on RDKit
APIs that the WebAssembly build does not expose — so those routes are served by
a small FastAPI service:

**https://braid-9wc2.onrender.com**

The encoders run there from ONNX graphs exported from the checkpoints below,
on CPU. That service is on a free instance and sleeps when idle: the first
request after a quiet spell can take ~50 seconds to wake it. Everything
browser-side stays instant meanwhile.

- Code: https://github.com/AayushK-othari/braid
- Models: https://huggingface.co/aakothari/BRAIDBERTa
  and https://huggingface.co/aakothari/DeepBERTa_zinc_base_100k_v4

`GET /version` on the backend returns the git SHA, the pinned model revisions
and the installed package versions behind whatever you are looking at.

## Pointing at your own backend

The workbench's settings panel takes any endpoint. To run the converters and
encoders locally instead — nothing leaves your machine:

```bash
pip install -r requirements-backend.txt
python backend.py
```

then set the endpoint to `http://127.0.0.1:8000`.