Threads Character Limit 2026: Posts, Bio & Text Attachments

Threads, Meta's text-based platform launched to compete directly with Twitter/X, gives you 500 characters per post — nearly double Twitter/X's 280. Here's every Threads character limit for 2026.

Threads Character Limits

For the complete interactive reference with all fields for every platform, visit our all-platforms character limit cheat sheet — with 16 platforms in one page and links to dedicated tools for each.

Why 500 Characters, Not 280?

Threads standard posts allow 500 characters, and a text attachment feature extends that to 10,000 characters for longer-form content within the same post — a deliberate design choice that positions Threads for slightly more substantial commentary than Twitter/X's famously terse 280-character format, while still staying well short of a full blog post.

Threads vs Twitter/X vs Bluesky at a Glance

Writing for Threads' Longer Limit

• 500 characters gives room for a complete thought, but the platform still rewards concise, scannable writing over dense paragraphs
• Use the extra space for context or a follow-up point rather than padding — Threads' algorithm still favors posts that generate quick replies
• Since Threads integrates closely with Instagram, cross-posting from an Instagram caption often needs trimming to fit comfortably, not expanding

See our Bluesky character limit guide for a close comparison, or the full social media character limits guide. Check Twitter/X limits and Instagram caption length for Meta's other major platforms.