A hashtag is a label that lets a post be found by people who do not follow you. For an author, hashtags are one of the few free ways to put a book in front of readers who are already looking for a genre or a trope. Reader communities on Instagram, TikTok and YouTube gather around tags such as bookstagram, booktok and fantasybooks, and a good post in the right tags can reach thousands of readers. A post with no tags, or with tags nobody follows, is seen mostly by your existing followers.
Free tool · Hashtag Generator
Hashtag Generator that gives you hashtags that readers actually follow
The hashtag generator builds a mixed set of broad, genre and topic hashtags for a book launch, an event such as a wedding or a signing, or any custom topic, for Instagram, Instagram Reels, TikTok, YouTube, YouTube Shorts or Facebook, with a note on how many hashtags each platform handles well and a copy button for the set. It is a template tool that runs in your browser and is free.
Use the free tool
The hashtag generator is free to use, with no account and nothing uploaded.
- Book, event and custom modes
- Platform tips
- Copy all in one click
Key facts
- FreeNo cost, no account and no usage limit on the hashtag generator
- In your browserNothing that you type or paste into the hashtag generator is uploaded
- SecondsTypical time from opening the hashtag generator to a result
Free tool
Hashtag generator
Get a mixed set of broad, genre and topic hashtags for a book launch, an event or any custom topic, with a note on how many each platform handles well.
The hashtag generator needs JavaScript, and it works in your browser without sending anything that you enter to a server.
Overview
What the hashtag generator does and why it helps
The generator builds a balanced set rather than a random pile. It mixes broad community tags, such as bookstagram, booktok, amreading and indieauthor, with genre tags such as fantasybooks, romancereaders or thrillerbooks and with tags built from your own topic, title or names. Choose what the set is for, a book promotion, a wedding or other event, or a custom topic, enter the topic or the names, pick the genre and the platform, and you get a set sized for that platform, ready to copy.
Platforms change how they treat hashtags, and the number that works best differs between them. Instagram and TikTok both reward a small number of relevant tags more than a large number of vague ones, and YouTube uses a few tags in the description and title. The tool gives a note on a sensible range for each platform, and you should check the current guidance, since it changes. Use a mix of sizes, add a branded tag of your own and test which sets bring the most reach, and avoid banned or unrelated tags.
The hashtag generator suggests relevant hashtags for your book posts, based on genre and topic. This is a free hashtag generator, built for authors who want a clear answer without buying software. Open the hashtag generator online and it is ready at once, with no download. It is a hashtag generator for authors, so the defaults assume you are preparing a book rather than a business report.
It works as a hashtag generator Instagram users can rely on, a hashtag generator Instagram free of charge and a hashtag generator for Instagram Reels. Other platforms have their own needs: a hashtag generator TikTok authors can use, a hashtag generator for TikTok captions, a hashtag generator YouTube creators can use, a hashtag generator for YouTube Shorts and a hashtag generator for Facebook posts. It would even serve as a hashtag generator for wedding photo albums, since a hashtag is only a short tag.
How to use it
How to use the hashtag generator, step by step
Choose the purpose
Pick a book launch, an event such as a wedding or a signing, or a custom topic. The tool builds a different mix of hashtags for each.
Choose the platform
Pick Instagram, Instagram Reels, TikTok, YouTube, YouTube Shorts or Facebook. Each platform handles a different number of hashtags well. Take your time with this step, because every later result in the hashtag generator depends on it.
Enter your genre or topic
Type the genre or the subject of the post. The tool uses it to select genre and topic hashtags. If a value looks wrong, change it and read the result again; the hashtag generator never stores or uploads what you enter.
Read the set
The tool gives a mix of broad, genre and topic hashtags. A mix reaches both large and focused audiences. The hashtag generator updates as you type, so you can correct a value and see the result straight away.
Read the note on the platform
The tool tells you how many hashtags the platform handles well. More is not always better. Take your time with this step, because every later result in the hashtag generator depends on it.
Copy the set
Use the copy button, and paste the hashtags into your post. Check each one for meaning before you post. If a value looks wrong, change it and read the result again; the hashtag generator never stores or uploads what you enter.
How the hashtag generator works
A balanced mix, built from your topic
Choose book promotion, a wedding or event, or a custom topic. For a book, the tool mixes broad reader tags such as bookstagram, booktok and amreading with genre tags such as fantasybooks and tags built from your own keywords. For an event, it builds name-based tags and a year, and for a custom topic it builds variations on your word.
It also gives a note for the platform that you choose: Instagram, Reels, TikTok, YouTube, Shorts or Facebook. Most advice is to use a handful of relevant tags rather than the maximum, and YouTube ignores all hashtags on a video that has more than fifteen, so the tool limits the number to match.
A good set mixes broad, medium and niche tags. Check that a hashtag does not mean something unexpected before you use it, follow a few tags to see what appears and update your list regularly, since trends move. Press the button for fresh ideas.
- Book, event and custom modes
- Tips for six platforms
- Copy one tag or all of them
Method
How the hashtag generator works out its answer
Three layers
A set combines broad community tags, genre or niche tags and personal tags built from your topic, title or names, so that you reach large audiences and focused ones.
For books, events and custom topics
The book option uses reader community and genre tags. The event option builds tags from names and the year, such as a wedding hashtag. The custom option builds tags from your topic.
Platform sizing
The set length and a note reflect what each platform handles well, such as a moderate number on Instagram and a few on TikTok and YouTube.
Formatting
Tags are written in lowercase or camel case, without spaces or punctuation, with a hash sign in front, so that they can be pasted into a post.
Tips
Getting the most from the hashtag generator
Mix big and small
Broad tags reach many people, and focused tags reach the right ones. The hashtag generator is free and instant, so it is worth running again whenever your book changes.
Check the tag before you use it
Some tags have unexpected meanings. Make the hashtag generator a routine step on every project, so that results stay consistent from book to book.
Keep a record
Note which sets work for you. A few minutes with the hashtag generator now saves time across the whole manuscript.
Need it done for you?
When the hashtag generator is not enough
The generator gives you the tags. These services give the posts something to point to and something to show.
Book Landing Page Design
A landing page gives every post somewhere to send readers, with a sample chapter, an email sign-up and buy links for each store.
See the service →Book Cover Design
A strong cover is the image that makes a hashtag post stop the scroll, and a designer builds one for the genre.
See the service →3D Book Mockup Design
A 3D mockup gives you polished images of your book for posts and reels, in several angles and settings.
See the service →Before and after
Before and after using the hashtag generator
The same launch posts, first with a few random tags and then with a balanced set built for the genre and the platform.
123Before
- 1Posts with no tags at all
- 2Only huge tags where posts disappear
- 3The same set on every post
123After
- 1A mix of broad, genre and personal tags
- 2Small tags where posts stay visible
- 3A sized set for each platform
- 3problems found in the first review
- 3fixes checked in the final review
- 1named specialist owning every fix
- Fixedprice confirmed in the calculator before you order
More reach
A mix of sizes means your posts are seen by both large and focused audiences.
The right readers
Genre tags attract people who already like what you write.
Less effort
A ready set saves time on every post, and you can adapt it quickly.
Client reviews
What authors say about our social media launch service
Verified reviews from authors who asked a specialist to handle the social media launch after using the hashtag generator.
As a first-time author, the technical side of self-publishing was genuinely daunting. The consultation covered every decision — platform choice, pricing strategy, metadata, and distribution. I launched with genuine confidence.
The publishing readiness review identified four issues in my manuscript that would have caused rejection. Each was clearly explained and quickly resolved. My book launched without any technical complications.
My KDP file was rejected with a technical error message I could not understand. Book Formatting Experts diagnosed the problem immediately — a bleed issue on three pages — and corrected it the same day. Approved first time.
Good support throughout the KDP upload process. The metadata setup and category selection were explained clearly. One pricing setting needed adjustment after initial setup but it was corrected quickly.
The formatting error fix service saved my launch. My original formatter had made margin errors causing repeated rejection. Book Formatting Experts identified and fixed every issue within 48 hours. My launch was back on schedule.
Navigating IngramSpark's requirements for the first time felt overwhelming. The upload assistance handled everything — metadata, pricing setup, distribution channels. My children's book reached bookstores within two weeks.
My cookbook needed to be set up across multiple platforms simultaneously. The publishing support team handled every submission — KDP, IngramSpark, and Apple Books — with different requirements for each. Flawlessly executed.
Getting historical fiction placed in the right categories on Amazon and IngramSpark required strategic metadata. The team understood the genre classification and the book reached the right readers from the first week.
Good publishing support overall. The KDP metadata setup was thorough. One category selection needed updating after initial launch but it was corrected promptly. The book is performing well in its target categories.
My YA novel needed to reach both English-language and Japanese readers. The multi-region distribution setup was handled correctly across all required platforms. International sales have exceeded my expectations.
The cover is playful, bright, and immediately communicates the tone of the story. My target age group — children aged 6 to 9 — responded exactly as I had hoped when I showed them the design.
I had a previous EPUB that displayed incorrectly on several devices. Book Formatting Experts rebuilt it from scratch. The new version renders beautifully across every reader app I tested.
My bilingual poetry collection had French and Wolof on facing pages. The layout handled both languages with the right visual balance. One alignment correction in revisions and it was exactly right.
My memoir needed a warm, readable layout with consistent chapter styling. The specialist understood exactly what I was after and the finished file exceeded my expectations on every page.
Tight, clean, and exactly on brief. The chapter openers had the tension-driven feel the genre demands without being overdone. Upload to KDP was approved without a single correction requested.
The OCR conversion of my scanned historical documents was thorough and accurate. Every page was cleaned up and the resulting Word document was fully editable. A significant time saving compared to manual transcription.
The cover honours the cultural themes of my book while appealing to an international readership. The imagery, colour palette, and typography choices were all discussed through a genuinely collaborative process.
My business EPUB had tables and callout boxes that needed to be handled carefully. Everything was converted cleanly without losing any structural information. The file passed Amazon's validator on the first check.
More free tools
More free tools to use with the hashtag generator
Each of these tools is free, runs in your browser and works well alongside the hashtag generator.
Book Keyword Generator
On this social media launch job, free book keyword generator that works in your browser, plus a done-for-you keyword research service.
Open the tool →Book Launch Timeline Planner
On this social media launch job, free book launch timeline planner that works in your browser, plus a done-for-you launch plan service.
Open the tool →Universal Book Link Builder
For a social media launch, free universal book link builder that works in your browser, plus a done-for-you buy link setup service.
Open the tool →QR Code Generator
With your social media launch, free qr code generator that works in your browser, plus a done-for-you print layout service.
Open the tool →Adverb Passive Voice Checker
For a social media launch, free adverb passive voice checker that works in your browser, plus a done-for-you adverb and passive edit service.
Open the tool →Filler Word Finder
For a social media launch, free filler word finder that works in your browser, plus a done-for-you filler word edit service.
Open the tool →FAQ
Hashtag Generator: questions answered
These are the questions authors ask most about the hashtag generator, including accuracy, privacy and what to do next. If your question about the social media launch is missing, request a quote and a specialist will reply.
What is a hashtag generator?
It is a tool that builds a set of hashtags for a book, an event or a topic, mixing broad, genre and personal tags for a chosen platform.
How many hashtags should I use?
It depends on the platform. A moderate number works on Instagram, and a few relevant tags work on TikTok and YouTube. Check the current guidance.
What are the best hashtags for authors?
Community tags such as bookstagram and booktok, genre tags such as fantasybooks and romancereaders, and a branded tag of your own.
What is a branded hashtag?
A tag that belongs to you, such as your series or author name, that collects your readers' posts.
Should I use big or small hashtags?
A mix. Large tags give reach but bury posts, and small tags are less competitive and more focused.
Can I make a hashtag for a wedding or event?
Yes. Choose the event option, enter the names and the year, and the tool builds tags for guests to share.
Do hashtags work on TikTok and YouTube?
Yes, but in different ways. Use a few relevant tags and follow each platform's current guidance.
Can hashtags be banned?
Some tags are restricted by platforms, so search a tag before using it.
How often should I change my hashtags?
Rotate some tags between posts so that you do not repeat the same set every time.
Does the hashtag generator keep anything that I enter?
No. The hashtag generator works in your browser, so what you enter stays on your device and is never saved.
Does the hashtag generator keep anything that I enter?
No. The hashtag generator works in your browser, so what you enter stays on your device and is never saved.
Is the hashtag generator free?
Yes, the hashtag generator costs nothing, needs no account and puts no limit on the sets you create.
Work with a specialist
Turn what you learn from the hashtag generator into a finished book
The hashtag generator costs nothing, and so does asking what a specialist would do with your book. When the hashtag generator has done its part and you want finished files, a fixed price and one named person who owns the job, we are ready to start.