YouTube Character Limits at a Glance
YouTube's metadata fields each have their own character limits. Knowing these limits — and, more importantly, knowing how much of each field is actually visible to viewers — allows you to place your most important information where it will be seen.
| Field | Max Characters | Visible Without Action |
|---|---|---|
| Video title | 100 | ~60–70 on desktop, ~50 on mobile |
| Video description | 5,000 | ~150–200 chars ("Show more") |
| Tags | 500 total | Not visible to viewers |
| Channel description | 1,000 | ~200 chars before "Read more" |
| Playlist title | 150 | Varies by context |
| Playlist description | 5,000 | ~200 chars before "Show more" |
| Community post | 5,000 | Truncated at ~200 chars |
Video Title: 60 Characters Is the Real Limit
YouTube technically allows up to 100 characters in a video title. In practice, 60 characters is the effective limit for anything you want viewers to actually read. YouTube search results on desktop truncate titles at approximately 60–70 characters. On mobile, the cutoff is even shorter — around 50 characters. Suggested video panels and embedded players often display even fewer.
Front-load your keyword and hook
Place your target keyword and the most compelling part of your title within the first 50–60 characters. If a viewer only sees the first 50 characters of your title, does it still communicate enough to make them want to click? Test your title by covering everything after character 50 and asking: "Would I click this based on only what's visible?"
- Good structure: [Primary keyword] + [compelling benefit or hook] — additional detail
- Example: "How to Write a Resume (With No Experience) — Step-by-Step"
- Avoid leading with episode numbers, series labels, or channel names unless your brand is already well-known
- Use numbers when possible — "7 ways," "5 mistakes," "3 steps" — they signal concrete, scannable value
Avoiding clickbait while staying compelling
YouTube actively suppresses videos with misleadingly clickbait titles because they generate high click rates but also high abandonment rates. A video that gets clicked but immediately abandoned sends a signal to YouTube's algorithm that the title over-promised. Write titles that accurately reflect the video content while still being compelling — this builds long-term channel trust and algorithmic performance simultaneously.
Video Description: Structure and Length
The video description is one of YouTube's most underused SEO assets. With 5,000 characters available — approximately 750–900 words — the description field gives you substantial space to signal relevance, provide viewer utility, and include searchable keywords. Yet many creators write descriptions of just one or two sentences.
The first 150 characters: your above-the-fold window
On the watch page, the description is collapsed to approximately 3 lines before a "Show more" link appears. On mobile, this is even fewer characters — sometimes as few as 100. The first 150 characters of your description must work as a compelling standalone pitch: what is this video about, why should the viewer watch it, and what will they learn?
Include your primary keyword in the first sentence if possible. YouTube's algorithm reads descriptions for topical signals, and the opening characters carry more weight than text buried at the bottom. After the opening hook, expand into a longer description that helps both viewers and YouTube understand the video's full scope.
What to include in the full description
A well-structured YouTube description typically includes:
- Lines 1–3 (150 chars): Primary keyword + hook + what the viewer will get
- Next 300–500 chars: Expanded overview of the video content
- Timestamps: Chapter markers with descriptive labels (also improves SEO)
- Links: Related resources, products, or next videos
- Social links and calls to action: Subscribe prompt, community links
- Keywords section: A natural paragraph using related search terms
- Standard boilerplate: Channel description, legal notices (at the very bottom)
SEO Best Practices for Titles and Descriptions
YouTube is the world's second-largest search engine. Optimizing your title and description for YouTube SEO directly impacts how many people discover your video through search — not just through suggested videos or subscribers.
Keyword placement matters
Place your primary keyword as close to the beginning of the title as possible, and include it in the first 100–150 characters of the description. YouTube's algorithm gives more weight to keywords that appear early and prominently. In the description, use your primary keyword once or twice and include 3–5 closely related secondary keywords naturally woven into the text — not in a keyword-stuffed list at the bottom.
- Research keywords using YouTube's autocomplete (type your topic and see what YouTube suggests)
- Check competitor titles for high-ranking videos on your topic
- Use question-format titles for informational searches: "How to," "Why does," "What is"
- Include the year or "in [year]" for time-sensitive topics — users filter for freshness
- Write descriptions in full sentences, not keyword lists — YouTube processes natural language
Tags and Other Metadata Lengths
YouTube tags have a combined total limit of 500 characters across all tags for a single video. Individual tags don't have a separate per-tag limit, but keeping each tag concise (2–5 words) is standard practice. Tags are not visible to viewers and have less SEO weight than they did historically — titles and descriptions carry significantly more influence today — but they still provide useful categorization signals.
Use tags to cover variations of your main keyword: include singular and plural forms, common misspellings, and synonyms that viewers might search for. Put your exact target keyword as your first tag. Add 5–15 tags total rather than filling all 500 characters with marginally related terms — quality and relevance matter more than quantity.