Show HN: Tensor Spy: inspect NumPy and PyTorch tensors in the browser, no upload

Tensor Spy promises CSI-for-your-data energy: open your number-heavy files from NumPy and PyTorch right in the browser—no upload. Think: big grids of numbers used in AI and robotics become pictures you can slice, tile, reshape, and hover over, with keyboard shortcuts and flashy colors to flag weird values like “not-a-number” and “infinity.” It’s very “see it, don’t ship it” and the community is here for the local-only vibe.

The first voice to set the tone is KeplerBoy, who called it “Neat” and said modern AI tools can “one‑shot” helpers like this in a way that would’ve taken weeks before. Translation: people are shocked at how fast crafty utilities now appear, and they’re grateful they don’t have to hand their data to the cloud. Expect the classic tension: browser‑based convenience versus the “install a real app” crowd. Privacy hawks are likely cheering, while performance skeptics will inevitably ask “but does it handle massive datasets without turning my laptop into a space heater?” For now, the mood is hype and relief—less yak‑shaving, more getting to the good stuff. If you’ve ever screenshot a heatmap to spot anomalies, the crowd’s energy says this could be your new guilty pleasure.