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---
number: 965
title: Baseline 2025 Features web gained in 2025
date: 1766404800000
url: https://traffic.megaphone.fm/FSI5433220103.mp3
youtube_url: https://www.youtube.com/watch?v=jg8gJz82kZg
---

Scott and Wes break down the biggest web platform features that reached Baseline in 2025, separating the genuinely useful APIs from the niche and forgettable ones. From same-document view transitions and the Popover API to Promise.try, content-visibility, and modern CSS goodies, they share what’s actually ready to use today.

### Show Notes

* **[00:00](#t=00:00)** Welcome to Syntax!
* **[01:37](#t=01:37)** [24 new web APIs that reached baseline in 2025](https://web.dev/baseline/2025).
* **[01:49](#t=01:49)** [Same-document view transitions](https://web.dev/blog/same-document-view-transitions-are-now-baseline-newly-available) for single-page applications.
* **[05:28](#t=05:28)** [abs()](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values/abs)
* **[08:22](#t=08:22)** Brought to you by [Sentry.io](https://sentry.io/syntax).
* **[09:20](#t=09:20)** [JSON Module Scripts](https://web.dev/blog/json-imports-baseline-newly-available).
* **[10:10](#t=10:10)** [Popover API](https://web.dev/blog/popover-baseline).
* **[13:07](#t=13:07)** [Base64 to UInt8Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array/fromBase64).
* [Better Binary Batter Mixing](https://blobfolio.com/2019/better-binary-batter-mixing-base64-and-uint8array/ )
* **[16:11](#t=16:11)** [@starting-style](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules/@starting-style)
* [Scott’s A CSS Only Accordion with <details>](https://tolin.ski/cool-treats/accordion#a-css-only-accordion-with-ltdetailsgt)
* [Scott’s Mobile Nav](https://tolin.ski/cool-treats/mobile-nav)
* **[17:39](#t=17:39)** [allow-discrete](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/transition-behavior)
* **[21:31](#t=21:31)** [Promise.try](https://web.dev/blog/promise-try-baseline)
* **[22:51](#t=22:51)** [content-visibility](https://web.dev/articles/content-visibility)

### Hit us up on Socials!

Syntax: [X](https://twitter.com/syntaxfm) [Instagram](https://www.instagram.com/syntax_fm/) [Tiktok](https://www.tiktok.com/@syntaxfm) [LinkedIn](https://www.linkedin.com/company/96077407/admin/feed/posts/) [Threads](https://www.threads.net/@syntax_fm)

Wes: [X](https://twitter.com/wesbos) [Instagram](https://www.instagram.com/wesbos/) [Tiktok](https://www.tiktok.com/@wesbos) [LinkedIn](https://www.linkedin.com/in/wesbos/) [Threads](https://www.threads.net/@wesbos)

Scott: [X](https://twitter.com/stolinski) [Instagram](https://www.instagram.com/stolinski/) [Tiktok](https://www.tiktok.com/@stolinski) [LinkedIn](https://www.linkedin.com/in/stolinski/) [Threads](https://www.threads.net/@stolinski)

Randy: [X](https://twitter.com/randyrektor) [Instagram](https://www.instagram.com/randyrektor/) [YouTube](https://www.youtube.com/@randyrektor) [Threads](https://www.threads.net/@randyrektor)