The Mercari title character limit is 80 characters. That is the number you came for, and it is the one Mercari actually enforces in the sell form today. You get the full 80 for every listing title, the same allowance you get on Poshmark and eBay.
If you have seen a different figure floating around, you are not imagining it. Plenty of guides and older help pages still say 40, and that single wrong number costs sellers half their title every day. This guide gives you the correct limit, explains exactly where the 40 myth comes from, and shows you how to spend all 80 characters so your item actually gets found in search.
The short version: you have 80 characters, the first 40 of them carry most of the weight, and wasting either half is leaving money on the table.
The exact Mercari title character limit
Eighty characters. That is the hard cap on a Mercari listing title as of 2026.
For reference, 80 characters is roughly twelve to fourteen words. It is enough to fit a brand, an item type, a size, a color, a condition, and a useful descriptor or two without running out of room. The field stops accepting input once you hit 80, so you simply fill it until you cannot type any more.
The description field is separate and far larger, at 1,000 characters, so the title is the tight constraint that forces you to choose your words well. Tags are limited to three. The title is where the real search work happens, because it is the first thing Mercari’s search reads and the first thing a buyer sees.
Why some sources say 40 characters
There are two honest reasons the number 40 keeps showing up, and one of them is actually useful to you.
Older limits and outdated guides
Mercari’s title field was shorter in earlier years, and a lot of blog posts, forum threads, and cached help content were written against the old number. Search engines still surface those pages, so a seller researching the limit lands on a confident "40 characters" claim that was true once and is wrong now. The result is a search results page where the top answers disagree with each other, which is exactly why you are reading this.
Mobile cuts your title off around 40 characters
This is the reason that matters. Even though you get the full 80, Mercari is mobile-first, and the search feed on a phone only shows roughly the first 40 to 50 characters before it truncates with an ellipsis. So both numbers are real. The field holds 80. The visible-on-scroll portion is about 40.
That distinction changes how you write. You are not choosing between 40 and 80. You are using all 80 for search indexing while making sure the most important words live in the first 40, where a scrolling buyer will actually read them.
How to use all 80 characters effectively
A title is not a sentence. It is a search string. Mercari shoppers type plain, literal terms into the search bar, usually a brand plus an item type plus a detail like size or color. Your job is to match the words they type, in the order that matters most.
Front-load the title with what buyers search and what they see first. A reliable order is brand, then item type, then the key specifics: size, color, condition, and a model or line name if the item has one. Everything a buyer would plausibly type goes near the front. Everything decorative goes at the back, or gets cut entirely.
Use the back third of the title for secondary keywords: the extra terms a buyer might add to narrow a search, like a material, a style era, a fit, or an alternate name for the item. They do not need to read smoothly. They need to be searchable. The front of the title is for humans scrolling; the tail is for the search index.
A few rules keep your 80 characters working hard:
- Lead with the brand if the item has a recognized one. Brand searches convert.
- Spell out the obvious specifics: size, color, condition. Do not assume the buyer will open the listing to find them.
- Skip filler adjectives. Words like "beautiful," "cute," or "amazing" are characters nobody searches for.
- Avoid repeating the same word. One mention indexes it; three just wastes space.
- Do not use emojis. Mercari titles are not the place for them, and they eat characters a keyword could use.
The goal is a title where every character is either helping a buyer recognize the item at a glance or helping Mercari’s search surface it. If a word does neither, cut it and put a real keyword in its place.
Examples of strong 80-character Mercari titles
Here are titles built to use the full limit, with the brand and core specifics front-loaded and secondary keywords filling the tail. Each sits at or near 80 characters.
Sneakers
Nike Air Max 90 Mens Size 10 White Black Running Shoes Like New VNDS Sneakers
Women’s clothing
Lululemon Align Leggings Size 6 Black High Rise 25 Inch Yoga Pants EUC Workout
Handbag
Coach Willow Tote Brown Leather Shoulder Bag Medium Authentic Excellent Used
Electronics
Apple AirPods Pro 2nd Gen USB C White Wireless Earbuds Original Box Like New
Kids’ clothing
Carters Baby Boy 12 Month Footed Pajamas Blue Dinosaur 2 Pack Fleece NWT Sleep
Notice the pattern. The brand and the item land in the first few words, where the mobile feed shows them. Size, color, and condition come next, because those are the filters buyers care about most. The final words, the ones at risk of being cut off on a phone, are the secondary keywords that only help in search anyway. Nothing is wasted, and nothing decorative survives.
A weak version of that first title would read "Cute Nike shoes size 10." It is under 30 characters, it skips the model, the color, and the condition, and it surfaces for almost nothing. Same shoe, a fraction of the visibility.
How an AI tool writes titles that max the limit
Writing one perfect 80-character title is easy enough. Writing a fresh one for every item, listing after listing, while keeping the brand front-loaded, the specifics in order, and the tail packed with real keywords, is the part that wears sellers down. It is slow, and it is the first thing people get lazy about when they are listing in volume.
That is the job our Mercari AI listing generator was built for. You give it the basics about your item, and it writes a title engineered to use the full 80 characters: brand and item type up front where the mobile feed shows them, size, color, and condition next, and secondary keywords filling the rest right up to the limit. It writes the 1,000-character description and your three tags at the same time, then fills them straight into the Mercari sell form so you are not copying and pasting field by field. It will not add emojis, because Mercari titles should not have them, and it will not run past 80 characters, because the field will not allow it.
You stay in control of the facts. The tool handles the wording, the ordering, and the character math, so every listing uses its full title allowance instead of the half most sellers settle for. If you list a handful of items a month, writing titles by hand is fine now that you know the rule: fill all 80, lead with the brand, skip the filler. If you are moving real volume and every title is a small decision you make dozens of times a day, that is the point where letting AI write the title, description, and tags frees you to focus on sourcing and shipping.
Put it to work
The Mercari title character limit is 80. Use every one of them. Front-load the brand and item so a scrolling buyer stops, fill the back half with the searchable specifics, and never waste a character on a word nobody is typing into the search bar.
When you want every title written to the full limit without doing the character math yourself, install QuickListAI free on the Chrome Web Store and let it write the title, description, and tags straight into your Mercari listing. Your first listings are free, so you can see the difference a full 80-character title makes before you commit.
Try the Mercari AI Listing Generator
Generate Mercari titles within the 80-character limit, plus descriptions and hashtags, then auto-fill them on the listing form. 2 free listings, no credit card required.
Add to Chrome, FreeFrequently asked questions
The Mercari title character limit is 80 characters. That is the current cap in the sell form, and the field stops accepting input once you reach it. Older guides that say 40 are out of date. You get the full 80 for every listing title, so use all of them.
Two reasons. First, Mercari’s title field was shorter in earlier years, and many older blog posts and help pages were never updated, so search engines still surface the wrong number. Second, the mobile search feed only displays the first 40 to 50 characters before cutting off, so 40 is the visible portion even though 80 is the real limit.
On the mobile app, roughly the first 40 to 50 characters of your title display in the search feed before it truncates with an ellipsis. The full 80 characters are still indexed and searchable, but only the front portion is visible while a buyer scrolls, which is why you front-load your most important keywords.
Lead with the brand and item type, then add the key specifics like size, color, and condition. Fill the remaining space with secondary keywords a buyer might search, such as material, style, or an alternate item name. Skip filler adjectives and emojis, and avoid repeating words, so every character is doing search work.
No. Mercari titles should not contain emojis, and they add nothing for search since buyers do not type emojis into the search bar. Every character an emoji takes is a character a real keyword could be using, so keep your title to plain searchable text and save the space for words that help buyers find your item.
Yes. QuickListAI writes a title built to use all 80 characters, with the brand and item front-loaded and secondary keywords filling the tail, plus a matching 1,000-character description and three tags. It fills them into the Mercari sell form for you and never adds emojis or runs past the limit, so every listing uses its full title allowance.