Code — Brad Jasper

Language models

2023–2025
llm.jsArchived
One simple interface to many language models: OpenAI, Anthropic, Google, local models and more, with sensible defaults.
Archived; today I use the AI SDK and OpenRouter.
2024
Thinkable TypeLive
A JavaScript knowledge-graph library: connected ideas stored as plain CSV, with AI-generated connections. Used in Think Machine.
2023–2024
ai.jsArchived
One toolkit for text, images, embeddings and vector search in Node.js, local by default.
Not maintained since 2024.
2024
embeddings.jsArchived
Text embeddings from a local model, OpenAI or Mistral behind one function, with caching.
Not maintained since 2024.
2024
vectordb.jsArchived
An in-memory vector database for text similarity search in Node.js.
Not maintained since 2024.
2024
imagine.jsArchived
AI image generation behind one function, with local Stable Diffusion or hosted models.
Not maintained since 2024.
2023–2024
scrape.jsArchived
Fetch any web page, including ones rendered by JavaScript, with one call.
Not maintained since 2024.

From my 2019–2021 Bitcoin SV work. Published under my handle synfonaut.

2019–2021
HummingbirdArchived
An open source framework for building real-time Bitcoin applications.
Not maintained since 2021.
2019
Pew PewArchived
A Bitcoin SV transaction shooter: it sends a burst of transactions to an address, for stress-testing and debugging real-time Bitcoin apps.
Not maintained since 2019.
2020
Pow PowArchived
A proof-of-work shooter: it sends a burst of proof-of-work transactions to Bitcoin SV, for testing proof-of-work apps.
Not maintained since 2020.
2019
Open DirectoryArchived
Reddit on Bitcoin: upvotes were microtransactions paid to the person who submitted the link.
It led directly to Bit.sv.
2019
ImmortalArchived
A simple app for saving web pages to Bitcoin, the content or its hash, as a tamper-proof record.
A side project; the site is offline.

2009–2017
jsonfieldMaintained by others
A Django model field for storing JSON, written in 2009, long before Django had one built in. It has about 51 million downloads on PyPI.
Now at rpkilby/jsonfield, and deprecated in favor of the JSONField built into Django 3.1.
2009
Celery (contribution)Maintained by others
An early contribution to the Python task queue: the task-set results model for its database backend.
A small contribution from October 2009; Celery is maintained by its own team.

2017–2022
ImportJSONArchived
Functions that pull JSON from any API into Google Sheets. I took over maintenance from its original author, Trevor Lohrbeer, in 2017.
Archived in 2022 and looking for a new maintainer.
2012–2013
Subtle Patterns BookmarkletArchived
A bookmarklet that previews background patterns from Subtle Patterns on any live website. It reached the Hacker News front page in 2013 with 347 points.
Not maintained since 2013.

2014
RadialMenuArchived
A touch context menu for iOS, modeled on the iMessage record control and animated with Facebook's POP. I started it the week Swift was announced.
Not maintained since 2014.

2011
Markov ChainsArchived
A character-level Markov model that generates new startup names after training on CrunchBase company names.
A one-off experiment.
2010
Mixpanel StatisticsArchived
Scripts that pull product analytics from Mixpanel's API and run correlation and regression analysis on them.
A one-off experiment.