It can follow lines automatically to save time.
This is perhaps the most popular alternative. It is free, web-based (no installation required), and incredibly powerful. It handles various chart types and is widely cited in academic papers. Getdata Graph Digitizer 226 Key
Finding a reliable way to extract data from old graphs or scanned images is a common challenge for researchers and engineers. has long been a go-to tool for converting those visual plots back into usable numbers. It can follow lines automatically to save time