[GSoC 2026] WebSocket/GRPC DevTools: Handling High-Frequency Stream UX

[Vineet Hegde]

Hi Elliott and Samuel,

While my proposal focuses on dart:io and VM Service instrumentation, I’ve been thinking ahead to the DevTools frontend UX for high-frequency WebSocket streams.

To handle large volumes of frames, would stream-management UI controls be worth considering? For example:

A “pause” toggle to freeze rendering while background traffic continues
Directional filtering (incoming vs outgoing)
This is not a change to my proposal scope, just a small UX consideration for a potential post-MVP enhancement.

I’d be interested in your thoughts on how developers should interact with this kind of high-volume data in DevTools.

Best regards,
Vineet Hegde

[Samuel Rawlins]

I think this is a space where we would take a look at what Chrome DevTools offers. But then even if Chrome DevTools had a robust offering in this space, we would probably want to carefully prioritize one feature over another, based on user feedback.

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