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HTML Validator

🧑‍💻 Developer Tools
4.02,000

Employ an HTML Validator online to swiftly validate HTML code. Leverage our syntax check verifier as an effective HTML error checker

Employ an HTML Validator online to swiftly validate HTML code. Leverage our syntax check verifier as an effective HTML error checker

User reviews

4 · from the Chrome Web Store
  • M

    Michael Tangen

    Mar 17, 2025

    Works OK, but is not up-to-date. One example I ran into, the <search> tag was marked as invalid HTML but on the contrary is. https://www.w3schools.com/tags/tag_search.asp

  • J

    jefhefjn

    Jul 31, 2024

    I would say that,HTML Validator extension is very important in this world.However, Thank

  • D

    Dagose

    Jul 19, 2024

    t's very convenient to check HTML for errors in the browser, This program has helped out many times. I advise everyone to have a good and positive day.

  • Р

    Роман Кунаков

    Jul 17, 2024

    AF_initDataCallback({key: 'ds:1', hash: '2', data:[[],[["3c69803e-6fe4-4d6d-9117-ddbb4cfdafe3",["Michael Tangen","https://lh3.googleusercontent.com/a-/ALV-UjVZK9-ltt47vR-b54DWLwsc8_an7GJFm8n8m11-izcjDuRpInXI\u003ds32"],3,"Works OK, but is not up-to-date. One example I ran into, the \u003csearch\u003e tag was marked as invalid HTML but on the contrary is. https://www.w3schools.com/tags/tag_search.asp",[1742229866,808485279],[1742229866,741722815],null,null,null,null,null,"1.0.0.5",null,"en","hkiecfigipbfbmkbpjhmejjhiffdgmok"],["4923bf30-b8df-4eaa-b87b-c68be443bf98",["jefhefjn","https://lh3.googleusercontent.com/a/ACg8ocIg-K0mt6Xk3xvhJzI9BzgaNuNsjqA8WObtz3CSZRRpmohSqw\u003ds32-mo"],5,"I would say that,HTML Validator extension is very important in this world.However, Thank",[1722452758,2367282],[1722452757,983276653],null,1,null,null,null,"1.0.0.5",null,"en","hkiecfigipbfbmkbpjhmejjhiffdgmok"],["c47d4fd7-4f40-4c32-9082-19970985f48a",["Dagose","https://lh3.googleusercontent.com/a-/ALV-UjWqEx_Nz9nayeM1V2aFlcvg-9yUVd0O8GB7a6B0tznJ7etmBsg\u003ds32"],5,"t's very convenient to check HTML for errors in the browser, This program has helped out many times. I advise everyone to have a good and positive day.",[1721357274,22768531],[1721357274,20156042],null,null,null,null,null,"1.0.0.5",null,"en","hkiecfigipbfbmkbpjhmejjhiffdgmok"],["acb20fab-ed7b-46c4-a7f2-26c7853a497c",["Роман Кунаков","https://lh3.googleusercontent.com/a-/ALV-UjXepYOhq1rG27crH8NA2OP8q4t9rvjup6s8ZLJHBF7uacC1DHCA\u003ds32"],5,"A useful and very necessary extension for finding errors in HTML, very easy to use even for a beginner.",[1721233221,467787955],[1721233221,456852406],null,1,null,null,null,"1.0.0.5",null,"en","hkiecfigipbfbmkbpjhmejjhiffdgmok"]],4], sideChannel: {}});