Filip Sobol
@filipsobol.bsky.social
Building (mostly) open-source software. Follow for JavaScript, devtools, and performance content.
🛰️ https://sonda.dev — Universal bundle analyzer
🛰️ https://sonda.dev — Universal bundle analyzer
Here are the charts with absolute numbers👇
August 25, 2025 at 9:40 PM
Here are the charts with absolute numbers👇
About 10 months ago I benchmarked the most popular bundlers to compare build speed and bundle size (tree-shaking + minification).
I just re-ran the tests with the latest versions to see what’s changed 👇
I just re-ran the tests with the latest versions to see what’s changed 👇
August 25, 2025 at 9:40 PM
About 10 months ago I benchmarked the most popular bundlers to compare build speed and bundle size (tree-shaking + minification).
I just re-ran the tests with the latest versions to see what’s changed 👇
I just re-ran the tests with the latest versions to see what’s changed 👇
When @eslint.org added official support for Markdown files, I figured it could be perfect for validating changeset files.
It fits the use case really well.
It fits the use case really well.
July 9, 2025 at 9:03 AM
When @eslint.org added official support for Markdown files, I figured it could be perfect for validating changeset files.
It fits the use case really well.
It fits the use case really well.
June 17, 2025 at 8:38 PM
Sonda v0.8 is here, and it's the biggest release to date.
It introduces a new UI that makes it easier to inspect and visualize large projects. It also displays more information about assets, inputs, external dependencies, and import relationships.
Demo and details below 👇
It introduces a new UI that makes it easier to inspect and visualize large projects. It also displays more information about assets, inputs, external dependencies, and import relationships.
Demo and details below 👇
June 16, 2025 at 1:44 PM
Sonda v0.8 is here, and it's the biggest release to date.
It introduces a new UI that makes it easier to inspect and visualize large projects. It also displays more information about assets, inputs, external dependencies, and import relationships.
Demo and details below 👇
It introduces a new UI that makes it easier to inspect and visualize large projects. It also displays more information about assets, inputs, external dependencies, and import relationships.
Demo and details below 👇
Sneak peek of the new Sonda design that I’ve been working on for the past few months. Well... it started as a redesign, but turned into a full rewrite of both the frontend and backend.
The new design should work much better for big projects and set the stage for what’s next.
The new design should work much better for big projects and set the stage for what’s next.
May 21, 2025 at 5:59 PM
Sneak peek of the new Sonda design that I’ve been working on for the past few months. Well... it started as a redesign, but turned into a full rewrite of both the frontend and backend.
The new design should work much better for big projects and set the stage for what’s next.
The new design should work much better for big projects and set the stage for what’s next.
Promotion happened. Staff Engineer.
March 24, 2025 at 9:16 AM
Promotion happened. Staff Engineer.
Do you mean DMs from people you follow or DMs in general? By default, only people you follow can DM you on BlueSky.
January 6, 2025 at 9:22 AM
Do you mean DMs from people you follow or DMs in general? By default, only people you follow can DM you on BlueSky.
Actually, it looks like adding an extra `<script module lang="ts>` also works.
January 4, 2025 at 6:20 PM
Actually, it looks like adding an extra `<script module lang="ts>` also works.
Sonda will soon have Angular integration too! If you'd like to give it a try, see this issue: github.com/filipsobol/s....
Already found duplicate dependencies in the server bundle in a fresh Angular project.
Already found duplicate dependencies in the server bundle in a fresh Angular project.
December 30, 2024 at 5:44 PM
Sonda will soon have Angular integration too! If you'd like to give it a try, see this issue: github.com/filipsobol/s....
Already found duplicate dependencies in the server bundle in a fresh Angular project.
Already found duplicate dependencies in the server bundle in a fresh Angular project.
However, it doesn't change the overall results from the benchmark, still placing Rolldown in the last place.
However, I got different results from you. I used the same command as in your screenshot. Would you mind sharing how you got them? My DM should be open.
However, I got different results from you. I used the same command as in your screenshot. Would you mind sharing how you got them? My DM should be open.
December 17, 2024 at 5:02 PM
However, it doesn't change the overall results from the benchmark, still placing Rolldown in the last place.
However, I got different results from you. I used the same command as in your screenshot. Would you mind sharing how you got them? My DM should be open.
However, I got different results from you. I used the same command as in your screenshot. Would you mind sharing how you got them? My DM should be open.
The current TC39 signals polyfill is much slower than Vue's signals, and this was even before the recent optimizations by @johnsoncodehk.bsky.social.
github.com/transitive-b...
github.com/transitive-b...
December 4, 2024 at 7:43 AM
The current TC39 signals polyfill is much slower than Vue's signals, and this was even before the recent optimizations by @johnsoncodehk.bsky.social.
github.com/transitive-b...
github.com/transitive-b...
*Build time or build size?*
I'm writing an article comparing tree-shaking capabilities of bundlers and looking for big JS libraries (100 KB+) I can use for testing. Any suggestions?
The differences are big, especially between “old” and “new” bundlers (no names yet, but build time are a good hint)
I'm writing an article comparing tree-shaking capabilities of bundlers and looking for big JS libraries (100 KB+) I can use for testing. Any suggestions?
The differences are big, especially between “old” and “new” bundlers (no names yet, but build time are a good hint)
December 1, 2024 at 5:31 PM
*Build time or build size?*
I'm writing an article comparing tree-shaking capabilities of bundlers and looking for big JS libraries (100 KB+) I can use for testing. Any suggestions?
The differences are big, especially between “old” and “new” bundlers (no names yet, but build time are a good hint)
I'm writing an article comparing tree-shaking capabilities of bundlers and looking for big JS libraries (100 KB+) I can use for testing. Any suggestions?
The differences are big, especially between “old” and “new” bundlers (no names yet, but build time are a good hint)
November 21, 2024 at 10:29 PM
Next on sonda's roadmap is proper documentation.
Besides explaining the library itself, it will include a knowledge base for troubleshooting tree-shaking issues, as there are surprisingly few resources that explain this in depth.
Do you have any questions about tree-shaking?
Besides explaining the library itself, it will include a knowledge base for troubleshooting tree-shaking issues, as there are surprisingly few resources that explain this in depth.
Do you have any questions about tree-shaking?
November 15, 2024 at 8:38 PM
Next on sonda's roadmap is proper documentation.
Besides explaining the library itself, it will include a knowledge base for troubleshooting tree-shaking issues, as there are surprisingly few resources that explain this in depth.
Do you have any questions about tree-shaking?
Besides explaining the library itself, it will include a knowledge base for troubleshooting tree-shaking issues, as there are surprisingly few resources that explain this in depth.
Do you have any questions about tree-shaking?
You can already see this information when you click on a tile.
Unless you are talking about something else?
Unless you are talking about something else?
November 10, 2024 at 4:16 PM
You can already see this information when you click on a tile.
Unless you are talking about something else?
Unless you are talking about something else?
It's live! Enable the `sources` option to see the code included in the bundle.
www.npmjs.com/package/sonda
www.npmjs.com/package/sonda
November 10, 2024 at 12:34 PM
It's live! Enable the `sources` option to see the code included in the bundle.
www.npmjs.com/package/sonda
www.npmjs.com/package/sonda
Soon you will be able to see the code that ended up in the bundle directly from `sonda`. Debugging tree-shaking issues will be so much easier.
This is the feature that made me create this package in the first place, and I'm so happy to have it working.
www.npmjs.com/package/sonda
This is the feature that made me create this package in the first place, and I'm so happy to have it working.
www.npmjs.com/package/sonda
November 8, 2024 at 6:51 PM
Soon you will be able to see the code that ended up in the bundle directly from `sonda`. Debugging tree-shaking issues will be so much easier.
This is the feature that made me create this package in the first place, and I'm so happy to have it working.
www.npmjs.com/package/sonda
This is the feature that made me create this package in the first place, and I'm so happy to have it working.
www.npmjs.com/package/sonda
Here are some screenshots. Tile colors in the tree map chart represent how much a given file contributes to the final size of the bundle.
November 3, 2024 at 9:56 AM
Here are some screenshots. Tile colors in the tree map chart represent how much a given file contributes to the final size of the bundle.