You can edit most Wikipedia pages directly, but the site requires you to create a free account first and follow specific formatting rules
Wikipedia lets almost anyone edit almost any page. You do not need permission, and you do not need to be an informed. What you do need is a free Wikipedia account, a basic understanding of how the site formats text, and a willingness to explain why you made your change. The process takes minutes for a small fix and a few hours for a larger rewrite, depending on how carefully you check your work and how much you already know about wiki markup — the straightforward code Wikipedia uses to format pages.
The barrier to editing is not technical skill. It is understanding that Wikipedia has rules about what counts as a valid change. You cannot add your opinion, promote a product or person, or post information you cannot cite to a published source. You can fix typos, add citations to existing claims, reorganise information to make it clearer, and add new material if you can point to reliable sources that back it up. The site's volunteer editors review changes, especially on popular pages, and will undo edits that break the rules.
Key Takeaways
- Create a free Wikipedia account by clicking "Create account" in the top right, then confirm your email address before you can edit.
- Click "Edit" or "Edit source" at the top of any page to open the editing window, make your changes, and preview them before saving.
- Write a brief explanation of your change in the "Edit summary" box — this tells other editors why you made it and helps them review your work fairly.
- Wikipedia requires you to cite sources for new information and major claims, using the citation format shown in the page's existing references.
- Edits to popular pages are reviewed by other editors, and changes that violate Wikipedia's rules will be undone, sometimes with a message explaining why.
Creating a Wikipedia account
You can make small edits to Wikipedia without logging in, but the site tracks your IP address instead of your name, and many pages restrict edits from unregistered users. Creating an account takes two minutes and gives you a username that appears on your edits instead of your IP address.
Go to Wikipedia.org, click "Create account" in the top right corner, and enter a username, password, and email address. Wikipedia will send you a confirmation email. Click the link in that email to verify your address, then log in. You are now ready to edit. Your username is public — anyone can see it on your edits and on your user page — so choose something you do not mind being associated with your contributions.
Finding the edit button and opening the editor
Every Wikipedia page has an "Edit" tab near the top, usually next to "Talk" and "History". Click it to open the editing window. On some pages you will see two options: "Edit" and "Edit source". "Edit" opens the visual editor, which works like a word processor and hides the wiki markup. "Edit source" shows you the raw code. Both produce the same result — use whichever feels more natural to you.
The visual editor is simpler if you are making small changes like fixing a typo or rewording a sentence. The source editor gives you more control and is often faster once you learn the basic formatting. You can switch between them at any time, even in the middle of an edit.
Making your change and writing an edit summary
Make your change in the editing window. If you are using the visual editor, it works like any text editor — highlight text to make it bold or italic, click buttons to add links or headings. If you are using the source editor, you will see wiki markup: text surrounded by '' becomes italic, ''' becomes bold, and links are written as [[ ]] with the page name inside.
Before you save, scroll down to the "Edit summary" box. Write a one-sentence explanation of what you changed and why. "Fixed typo in third paragraph" or "Added citation to 2023 study on climate impacts" tells other editors what to expect. A good edit summary takes 10 seconds to write and saves reviewers time. If you do not write one, editors may assume your change was accidental or vandalism and undo it without asking.
Click "Show preview" to see how your change looks on the page. Read through it carefully. Check that you did not accidentally delete something important, that links point to the right pages, and that the text flows naturally. Once you are satisfied, click "Publish changes" to save your edit.
Understanding Wikipedia's citation requirements
If you are adding new information or making a claim that is not already cited, you need to provide a source. Wikipedia calls this a citation or reference. You do not need to be a citation informed — you just need to point to a published source that supports what you wrote.
Look at the page you are editing and find an existing citation. It usually appears as a small number in brackets, like [1] or [2], and the full source information is listed at the bottom of the page in a "References" or "Sources" section. Copy the format of an existing citation and explore it to your new claim. If the page uses a template like {{cite book}} or {{cite web}}, use the same template for your citation. If you are unsure, add a note in the edit summary asking for help, and other editors will often format it for you.
Reliable sources include published books, peer-reviewed academic journals, news articles from established outlets, and government reports. Personal blogs, social media posts, and promotional websites do not count. If you cannot find a published source for something, it does not belong on Wikipedia, even if you believe it is true.
What happens after you publish your edit
Your change appears on the page when ready. On less popular pages, that is usually the end of the story — your edit stays unless someone notices a problem. On high-traffic pages like those about politicians, celebrities, or current events, volunteer editors review changes more closely. They may undo your edit if it violates Wikipedia's rules, add a citation if you forgot one, or reword your change to match the page's style.
If your edit is undone, do not take it personally. Click the "History" tab to see what changed and read the edit summary the reviewer left. If you disagree with their decision, you can click "Talk" to discuss it with them. Most disagreements are resolved through conversation. If an editor repeatedly undoes your work without explanation, you can ask for help on the page's talk page or report the issue to a Wikipedia administrator.
Common mistakes that get edits undone
The most frequent reason edits are removed is lack of a source. If you add a fact and another editor cannot find it cited anywhere, they will remove it. The second most common reason is point of view — Wikipedia requires neutral language. You cannot write "The brilliant scientist proved that..." or "The controversial policy failed because..." Instead, write "The scientist's research showed..." or "Critics argued the policy failed because..." and cite who made that argument.
Adding promotional content is another quick way to get undone. You cannot edit a company's Wikipedia page to make it sound better, add your own business to Wikipedia, or remove criticism. You also cannot edit a page about yourself to change how you are described, though you can discuss changes on the talk page and ask other editors to make them.
Finally, do not copy text from other websites and paste it into Wikipedia. Wikipedia content is free to reuse, but other websites' content is usually copyrighted. If you want to use information from another source, read it, close the page, and write it in your own words. Then add a citation to that source.
Frequently Asked Questions
Do I have to create an account to edit Wikipedia?
You can make edits without an account, but Wikipedia will record your IP address instead of a username. Many pages restrict edits from unregistered users, and your changes are less likely to be trusted by other editors. Creating an account is free and takes two minutes.
What if I make a mistake in my edit?
Click the "History" tab, find your edit, and click "Undo" next to it. Your change will be reversed. You can also edit the page again to fix the problem. Mistakes happen — other editors understand that and will not penalise you for correcting them.
Can I edit Wikipedia on my phone?
Yes. The mobile version of Wikipedia has an edit button. The visual editor works well on phones. The source editor is harder to use on a small screen because wiki markup requires more typing, but it is still possible.
What if someone undoes my edit and I think they are wrong?
Click the "Talk" tab at the top of the page and start a new section explaining your change. Other editors will see your message and discuss it with you. If you cannot reach agreement, ask for help from a neutral editor or an administrator.
How long does it take for an edit to show up on Wikipedia?
Your edit appears when ready on the page. Other readers will see it right away. On some pages, edits are reviewed by automated systems or human editors before they become visible, but this usually takes only a few minutes.