--- title: V8 is Faster and Safer than Ever! · V8 | daily.dev description: V8 has achieved impressive accomplishments in 2023, including performance optimizations, new features for Javascript and WebAssembly, and prioritizing safety.... canonical: https://daily.dev/posts/v8-is-faster-and-safer-than-ever-v8-l2bujeqp5 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: V8 is Faster and Safer than Ever! · V8 | daily.dev og:description: V8 has achieved impressive accomplishments in 2023, including performance optimizations, new features for Javascript and WebAssembly, and prioritizing safety.... og:url: https://daily.dev/posts/v8-is-faster-and-safer-than-ever-v8-l2bujeqp5 og:image: https://api.daily.dev/og/posts/L2BujeqP5.png og:image:alt: V8 is Faster and Safer than Ever! · V8 og:image:width: 1200 og:image:height: 630 og:locale: en --- [V8](https://daily.dev/sources/v8) [Read post](https://api.daily.dev/r/L2BujeqP5) # [V8 is Faster and Safer than Ever! · V8](https://api.daily.dev/r/L2BujeqP5 "Go to post") V8 has achieved impressive accomplishments in 2023, including performance optimizations, new features for Javascript and WebAssembly, and prioritizing safety. Highlights include the introduction of Maglev, a new optimizing compiler, and improvements to the top-tier compiler Turbofan. The HTML parser and DOM allocations have been optimized for faster performance. V8 has also added new JavaScript features and made updates to WebAssembly. The WebAssembly Garbage Collection (WasmGC) has been shipped, enabling the use of garbage-collected languages in Wasm. V8 has also focused on security, including sandboxing, fuzzing, and Control-flow Integrity (CFI). Overall, V8 is faster and safer than ever. [#security](/tags/security "Check all #security posts")[#javascript](/tags/javascript "Check all #javascript posts")[#performance](/tags/performance "Check all #performance posts")[#webassembly](/tags/webassembly "Check all #webassembly posts")[#v8](/tags/v8 "Check all #v8 posts") Dec 14, 2023•5m read time•From [v8.dev](https://api.daily.dev/r/L2BujeqP5 "v8.dev") [](https://api.daily.dev/r/L2BujeqP5 "Go to post") Table of contents [Maglev: new mid tier optimizing compiler #](https://api.daily.dev/r/L2BujeqP5?a=maglev%3A-new-mid-tier-optimizing-compiler "Maglev: new mid tier optimizing compiler #")[Turboshaft: new architecture for the top-tier optimizing compiler #](https://api.daily.dev/r/L2BujeqP5?a=turboshaft%3A-new-architecture-for-the-top-tier-optimizing-compiler "Turboshaft: new architecture for the top-tier optimizing compiler #")[Faster HTML parser #](https://api.daily.dev/r/L2BujeqP5?a=faster-html-parser "Faster HTML parser #")[Faster DOM allocations #](https://api.daily.dev/r/L2BujeqP5?a=faster-dom-allocations "Faster DOM allocations #")[New JavaScript features #](https://api.daily.dev/r/L2BujeqP5?a=new-javascript-features "New JavaScript features #")[WebAssembly updates #](https://api.daily.dev/r/L2BujeqP5?a=webassembly-updates "WebAssembly updates #")[WebAssembly Garbage Collection #](https://api.daily.dev/r/L2BujeqP5?a=webassembly-garbage-collection "WebAssembly Garbage Collection #")[Security #](https://api.daily.dev/r/L2BujeqP5?a=security "Security #")[Conclusion #](https://api.daily.dev/r/L2BujeqP5?a=conclusion "Conclusion #") 5 Impressions11 Upvotes1 Comment Comment Bookmark Copy Share your thoughtsPost [](https://daily.dev/sources/v8) [V8](https://daily.dev/sources/v8 "https://daily.dev/sources/v8") The V8 Blog provides updates, technical deep dives, and insights on V8, Google's open-source JavaScr... Read more 15 Followers • 25 Upvotes #### Would you recommend this post? Copy link WhatsApp Facebook X New Squad Copy linkShare with your friends 11 1 ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"V8 is Faster and Safer than Ever! · V8","url":"https://daily.dev/posts/v8-is-faster-and-safer-than-ever-v8-l2bujeqp5","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/v8-is-faster-and-safer-than-ever-v8-l2bujeqp5"},"datePublished":"2023-12-14T13:02:15.786Z","dateModified":"2023-12-14T13:02:13.960Z","description":"V8 has achieved impressive accomplishments in 2023, including performance optimizations, new features for Javascript and WebAssembly, and prioritizing safety....","image":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","thumbnailUrl":"https://media.daily.dev/image/upload/s--foaA6JGU--/f_auto/v1722860399/public/Placeholder%2004","isAccessibleForFree":true,"articleSection":"V8","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"V8","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/0cc7af7d23ee41d395473fd298dad108","url":"https://daily.dev/sources/v8"},"commentCount":1,"discussionUrl":"https://daily.dev/posts/v8-is-faster-and-safer-than-ever-v8-l2bujeqp5","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":11},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":1}],"keywords":"security,javascript,performance,webassembly,v8","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"V8","item":"https://daily.dev/sources/v8"},{"@type":"ListItem","position":3,"name":"V8 is Faster and Safer than Ever! · V8"}]} {"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/v8-is-faster-and-safer-than-ever-v8-l2bujeqp5","comment":[{"@type":"Comment","text":"Sumarize with GPT:\n\n\nPerformance Enhancements: V8 has made significant strides in performance through a new mid-tier compiler named Maglev and improvements to the top-tier TurboFan compiler. These advancements have resulted in faster code compilation and energy savings.\n\n\nNew Compiler Technologies: The introduction of Maglev and Turboshaft, the latter being a new architecture for the TurboFan compiler, marks a leap in compiling efficiency and optimization capabilities.\n\n\nFaster HTML Parser: V8’s performance optimization extends beyond JavaScript, evident in the development of a faster HTML parser for Blink, enhancing overall web performance.\n\n\nOptimizations in DOM Allocations: Improved memory allocation strategies for DOM objects, leading to better performance in DOM-heavy applications.\n\n\nJavaScript Feature Updates: V8 continues to support the evolution of JavaScript with new features like resizable ArrayBuffers, String methods, RegExp enhancements, and more efficient handling of modern JavaScript syntax.\n\n\nWebAssembly (Wasm) Advances: Significant updates in Wasm include support for multi-memory, tail-calls, and SIMD. The implementation of memory64 and exception-handling proposals stands out as key developments.\n\n\nWebAssembly Garbage Collection (WasmGC): A major milestone enabling more efficient management of memory for applications written in garbage-collected languages, leading to improved performance when compiled to Wasm.\n\n\nSecurity Improvements: Focused efforts on sandboxing, fuzzing, and Control-flow Integrity (CFI) have bolstered V8’s security capabilities, making it safer for users.\n\n\nBenchmark Scores: The article reports a 14% improvement in JetStream and a 34% increase in Speedometer scores, indicating significant performance gains for V8 in 2023.","datePublished":"2023-12-15T08:38:41.927Z","url":"https://daily.dev/posts/L2BujeqP5#c-3F5a0iuet","author":{"@type":"Person","name":"Pararise","url":"https://daily.dev/pararise","image":"https://media.daily.dev/image/upload/s--JBHBVPZJ--/f_auto,q_auto/v1702024732/avatars/avatar_2GaAzm5zBKLbhQNvc2Xqs"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3}}]} ```