How to Use AO3: Invites, Tags, Filters, Downloads and Etiquette Explained

What is AO3?

AO3 (Archive of Our Own) is a free, non-profit archive for fanfiction, fanart and podfic, run by the Organization for Transformative Works. Anyone can read without an account; posting needs a free invitation.

What to know before your first visit:

• No ads, no paid tiers. The archive runs on donations, so the design is plain and nothing is pushed at you.
• "Don't like, don't read" is built into the system. AO3 hosts almost anything legal, but authors must label ratings and warnings. You filter; the archive doesn't censor.
• It's huge. Millions of works across tens of thousands of fandoms, from Harry Potter and Marvel to tiny indie games.
• Names. People say AO3, "the Archive", or "Ao3". The full address is archiveofourown.org; ao3.org also works.

How to get an AO3 account (the invite queue)

You join AO3 through an automated invitation queue. It exists to stop spam bots, not to vet writers — nobody reviews your work.

Step by step

1. Go to AO3 and click Get an Invitation.
2. Enter your email and confirm you're at least 13 and have read the Terms of Service.
3. Wait for the email. You can check your spot via "check your position on the waiting list" on the same page.
4. Follow the link, pick a username and password, and you're in. You can add pseuds (alternate author names) later.

How long does the AO3 invite take?

As of October 2026, the invitation page says AO3 sends out 5,000 invitations every 8 hours, with roughly 150,000 people in the queue. That works out to about one to two weeks. The page shows the current queue length. No email? Check spam and Gmail's Promotions tab.

How to read an AO3 work header

Every work starts with a metadata block. Once you can scan it in ten seconds, finding the right fic gets easy.

Field	What it tells you
Rating	Age rating (see below)
Archive Warning	Mandatory content warnings
Category	Relationship type: F/F, F/M, M/M, Gen, Multi, Other
Fandom	Source canon, e.g. Shingeki no Kyojin
Relationship	Pairing: / is romantic, & is platonic or family
Characters	Who shows up
Additional Tags	Tropes, genres, AUs, mood
Stats	Words, chapters, kudos, bookmarks, hits

Chapters shown as 1/? mean the author hasn't decided the length; 12/12 means complete.

AO3 ratings

• General Audiences — fine for anyone.
• Teen And Up Audiences — swearing, non-graphic violence, mild romance.
• Mature — adult themes, stops short of the most graphic content.
• Explicit — graphic sex or violence.
• Not Rated — the author skipped it. Treat it as Explicit.

Archive warnings

There are four: Graphic Depictions Of Violence, Major Character Death, Rape/Non-Con and Underage Sex. Plus No Archive Warnings Apply (none of those) and Creator Chose Not To Use Archive Warnings, which means "could be anything" — often used so a character death isn't spoiled.

AO3 tags explained

Authors type tags freely. Volunteer tag wranglers then link synonyms to one canonical tag, so Enemies to Lovers, enemies2lovers and rivals to lovers can all land in the same filter.

Tags worth knowing:

• Fluff, Angst, Hurt/Comfort — tone. Our guide to fanfiction genres breaks these down, and you can browse hurt/comfort stories.
• Alternate Universe plus a subtag: Alternate Universe - Modern Setting, Alternate Universe - Coffee Shops & Cafés, Alternate Universe - Soulmates. See what an AU is and the main types.
• Slow Burn, Enemies to Lovers, Found Family, Fake/Pretend Relationship, There Was Only One Bed — tropes.
• Canon Compliant vs Canon Divergence — follows canon or branches off.

Tags like "i'm so sorry" or "the author has no idea what she's doing" are freeform jokes. They won't help filtering, but they're part of the culture.

How to search AO3 like a pro

Use the filter sidebar

Open a fandom tag (say, Harry Potter) and use Sort and Filter on the right (the Filters button on mobile):

1. Include ratings, warnings, categories, relationships and tags.
2. Exclude the same things. This is AO3's best feature: exclude Major Character Death and no main character dies on you.
3. Complete works only to skip abandoned WIPs.
4. Language, if you read in more than one.
5. Words — set a minimum like 20,000 to skip drabbles.
6. Sort by Kudos for proven favorites, Date Updated for fresh chapters.

Search operators

In "Search within results" or Works → Search:

• "slow burn" — exact phrase
• -crossover — exclude a word
• in Works → Search, the Kudos, Hits and Word Count fields accept >1000, <5000 or a range like 1000-5000
• drarry || dramione — either term

Subscriptions and history

Subscribe to get an email when a work updates. Mark for Later builds a reading list, and your history is saved, so a half-remembered fic is always findable.

Kudos, bookmarks and comments

• Kudos — AO3's "like". One per work; you can leave it without an account.
• Bookmarks — saved works with your own notes and tags. Public bookmarks act as recs, and browsing a reader's bookmarks is a great way to find hidden gems.
• Comments — what authors value most. "This chapter wrecked me" is a perfectly good comment.

The kudos-to-hits ratio is an unofficial quality signal. Above 10% on a long fic is excellent.

How to download fanfiction from AO3

Every work has a Download button near the title. AO3 itself provides AZW3, EPUB, MOBI, PDF and HTML files. EPUB works in most reading apps; AZW3 is for Kindle. No account needed.

Download your favorites. Authors sometimes delete works or lock them to logged-in users.

AO3 etiquette

• Don't just demand updates. "When's the next chapter?" with nothing about the story wears authors down.
• Never repost someone's work, including translations, without permission. Translations should link back to the original.
• Tag honestly. One extra warning beats an angry reader.
• Skip unsolicited critique. Unless the notes say concrit is welcome, say what you liked.
• Keep fic away from creators. Don't tag actors or canon authors in fanworks.

Want to write your own?

AO3 is the place to read and post, but a blank page is hard. Fanficia can get you a first draft: pick a fandom and an idea, and AI writes opening chapters you can edit and continue. The text is yours to post on AO3 or anywhere else.

Browse Harry Potter stories or the slow burn tag for inspiration, or try this prompt.