Dweav Trace

Trace JavaScript state changes, compare snapshots, investigate web app behaviour, and use built-in developer tools in Chrome.

See what your website or web application is doing while you use it. Dweav Trace is a local-first Chrome development workspace for tracing JavaScript state, comparing changes, investigating unexpected behaviour, and keeping useful developer utilities close at hand. Open the side panel beside your product, reproduce the behaviour you want to understand, and watch your deliberate trace checkpoints appear without repeatedly switching between tabs and tools. Start without prior experience Dweav Trace includes guided onboarding that explains: How to connect the extension to your website Where to add useful trace checkpoints How to capture a first state snapshot How to compare before-and-after states How to trace login, checkout, save and API-failure flows How to reproduce and narrow a defect What sensitive information should never be traced What every extension button does The hosted Dweav Trace Live Lab provides working examples and interactive exercises on a real website: https://altru.dev/extensions/dweav-trace/live-lab Trace product behaviour Use the lightweight page API to record the states and events that matter to your investigation. Dweav Trace supports: Labelled state snapshots Dedicated trace streams Structural before-and-after comparisons Mutable object and collection watching Search and stream filtering Pause, resume, stop and clear controls Error and failure-context tracing Automatic secret redaction Payload, depth and rate protections Temporary session history Full page-to-panel connection testing Dweav Trace does not automatically understand or diagnose your entire application. You choose the useful checkpoints, keeping traces focused and understandable. Investigate real product flows Add checkpoints around important moments such as: Sign-in and access decisions Form validation Checkout stages Saved settings API request outcomes Loading and error states Feature flags State transitions Unexpected values Recovery paths Because Dweav Trace works on normal websites, you can use it to investigate your own product, a staging build, a local development page or an eligible public website. Compare meaningful changes Capture related states in the same stream and inspect their structural differences. This helps reveal: Added and removed properties Changed values Unexpected state mutations Missing response data Incorrect transition order Values that persist when they should reset Share investigations with your team — Pro Pro users can export a redacted trace session as JSON and send it to a teammate. Another Pro user can import that session into Dweav Trace for review. Team sessions are transferred manually. Dweav Trace does not operate a cloud account, upload your trace history or host team data. Always inspect an exported file before sharing it. Built-in developer Toolbox The local Toolbox includes utilities for: JSON formatting and validation JWT inspection Base64 encoding and decoding URL encoding and decoding Hash generation CRON assistance Timestamps and date conversion Text and case conversion Regex testing Text cleanup Secure value generation Clipboard Shelf Toolbox inputs and results remain in your browser. Free features The Free version includes: JavaScript state tracing Streams and structural comparisons Search and filtering Capture controls Temporary session history Connection self-test Guided onboarding Hosted Live Lab Developer Toolbox Pro features Pro unlocks: Persistent local trace history Redacted team-session export Team-session import Upgrade and purchase restoration are available inside the extension. Privacy by design Dweav Trace is designed around local inspection: No analytics No advertising trackers No remote code execution No automatic cloud trace uploads No Altru.dev account required Trace history stays inside the browser unless you explicitly export it Sensitive-looking values are redacted before team export Extension permissions are used to provide tracing on the websites you choose to inspect Some browser-managed or restricted pages do not permit extension injection. Developed by Altru.dev Copyright 2026