HTTP/2 302 server: nginx date: Thu, 15 Jan 2026 20:41:18 GMT content-type: text/plain; charset=utf-8 content-length: 0 x-archive-redirect-reason: found capture at 20101114042628 location: https://web.archive.org/web/20101114042628/https://www.prototypejs.org/ server-timing: captures_list;dur=0.728421, exclusion.robots;dur=0.043206, exclusion.robots.policy;dur=0.027442, esindex;dur=0.013818, cdx.remote;dur=117.843771, LoadShardBlock;dur=336.891597, PetaboxLoader3.resolve;dur=46.900168, PetaboxLoader3.datanode;dur=221.461838 x-app-server: wwwb-app224-dc8 x-ts: 302 x-tr: 518 server-timing: TR;dur=0,Tw;dur=0,Tc;dur=0 set-cookie: wb-p-SERVER=wwwb-app224; path=/ x-location: All x-as: 14061 x-rl: 0 x-na: 0 x-page-cache: MISS server-timing: MISS x-nid: DigitalOcean referrer-policy: no-referrer-when-downgrade permissions-policy: interest-cohort=() HTTP/2 200 server: nginx date: Thu, 15 Jan 2026 20:41:19 GMT content-type: text/html x-archive-orig-date: Sun, 14 Nov 2010 04:26:19 GMT x-archive-orig-server: Apache/2.2.2 (FreeBSD) mod_ssl/2.2.2 OpenSSL/0.9.8b DAV/2 PHP/5.1.4 SVN/1.3.2 mod_vd/2.0 mod_fastcgi/2.4.2 proxy_html/2.5 Phusion_Passenger/2.1.0 x-archive-orig-vary: Host,Accept-Encoding x-archive-orig-last-modified: Fri, 12 Nov 2010 12:49:22 GMT x-archive-orig-etag: "4cebd3-1933-85001880" x-archive-orig-accept-ranges: bytes x-archive-orig-content-length: 6451 x-archive-orig-connection: close x-archive-guessed-content-type: text/html x-archive-guessed-charset: utf-8 memento-datetime: Sun, 14 Nov 2010 04:26:28 GMT link: ; rel="original", ; rel="timemap"; type="application/link-format", ; rel="timegate" content-security-policy: default-src 'self' 'unsafe-eval' 'unsafe-inline' data: blob: archive.org web.archive.org web-static.archive.org wayback-api.archive.org athena.archive.org analytics.archive.org pragma.archivelab.org wwwb-events.archive.org x-archive-src: web_ma-003-20101114025703-00343-ip-10-194-211-223.ec2.internal/web_ma-003-20101114041217-00351-ip-10-194-211-223.ec2.internal.warc.gz server-timing: captures_list;dur=0.558053, exclusion.robots;dur=0.018325, exclusion.robots.policy;dur=0.009086, esindex;dur=0.010875, cdx.remote;dur=153.884287, LoadShardBlock;dur=387.949008, PetaboxLoader3.datanode;dur=403.634621, PetaboxLoader3.resolve;dur=94.470081, load_resource;dur=182.854817 x-app-server: wwwb-app224-dc8 x-ts: 200 x-tr: 791 server-timing: TR;dur=0,Tw;dur=0,Tc;dur=1 x-location: All x-as: 14061 x-rl: 0 x-na: 0 x-page-cache: MISS server-timing: MISS x-nid: DigitalOcean referrer-policy: no-referrer-when-downgrade permissions-policy: interest-cohort=() content-encoding: gzip

• Download
• API Docs
• Tips and Tutorials
• Blog
• Discuss
• Contribute

Prototype Javascript Framework

Prototype is a JavaScript Framework that aims to ease development of dynamic web applications.

Prototype is a JavaScript Framework that aims to ease development of dynamic web applications.

Featuring a unique, easy-to-use toolkit for class-driven development and the nicest Ajax library around, Prototype is quickly becoming the codebase of choice for web application developers everywhere.

Prototype 1.7 RC3: Support for IE9

Release Candidate 3 of Prototype 1.7 is now out. This long-delayed version includes full support for Internet Explorer 9.

Read more →

• Download

  Get the latest version—1.6

• Learn

  Online documentation and resources.

• Discuss

  Mailing list and IRC

• Contribute

  Submit patches and report bugs.

• Who's using Prototype?
• Meet the developers

© 2006-2007 Prototype Core Team | Licenses: MIT (source code) and CC BY-SA (documentation).