polar

Polar — A billing platform for the intelligence era

Open-source, self-hosted revenue-first analytics for founders: web analytics, Session Replay, revenue attribution, and customer revenue integrations. datafast alternative

The billing framework for TypeScript. Products in code, handles Stripe, webhooks, and usage state, runs in your app.

A GCode sender (not only for lasers or plotters) for up to two GRBL controller. SVG, DXF, HPGL import. 6 axis DRO.

One-click Bitcoin Lightning networks for local app development & testing

React Starter Kit built using React Router v7, Clerk, Convex & Polar

Fast multi-thread FEC simulator & library of efficient digital communication algorithms for SDR.

A multipurpose, 2 linear, 1 rotary axis cnc machine concept

🧰 All-in-one domain name intelligence as a service

Open-source Analytics SaaS

Heart rate variability (HRV) biofeedback with ECG chest straps.

Every AI model, one blazing fast workspace - see how they think, schedule what you need

FEC Codec IP core library for a some famous codes (BCH, RS, LDPC, Turbo)

Simple OFDM modem for transceiving datagrams

Polar devices Python API and CLI.

Parse your FIT files easily, directly from JS (Garmin, Polar, Suunto)

Free your data from Polar FlowSync

Transform long URLs into beautiful, trackable short links with Slugy ✨

A BLE Heart Rate Monitor bridge for Social VR, OBS, Data Logging, and more!

Verilog Forward Error Correction Archive: BOX-Muller for fast AWGN generation, Universal Demapper from BPSK to QAM-512, different Forward Error Correction coders and decoders Hamming code, Golay code (24), 4-dimension 8-ary phase shift keying trellis coded modulation (TCM_4D_8PSK), BCH, CCSDS and recursive systematic convolutional (RSC) Turbo codes