Character Counter

CHARACTERS LIMIT TEXT TWITTER

About this tool

Count characters instantly for Twitter, SMS, LinkedIn and more — with live platform limit indicators.

Count characters instantly for Twitter, SMS, LinkedIn and more — with live platform limit indicators. Free character counter, no signup required.

RT-TXT-009 · Text Tools

0 Characters

0 No Spaces

0 Words

0 Lines

Platform Limits

Twitter / X

0 / 280 280 remaining

SMS

0 / 160 160 remaining

LinkedIn Post

0 / 3,000 3,000 remaining

Meta Title

0 / 60 60 remaining

Meta Description

0 / 160 160 remaining

Instagram Bio

0 / 150 150 remaining

How to Use the Character Counter

Paste or type your text into the box

Character counts update instantly as you type — no need to click any button. Simply start typing or paste your content and watch every stat update in real time.

Watch the live stats

The four stat boxes above the platform bars show total characters, characters without spaces, word count, and line count — all updating on every keystroke so you always know exactly where you stand.

Check the platform limit bars

Each coloured bar shows how much of a platform's character limit your text uses. Bars turn orange at 80% of the limit and red when you exceed it, with a live "X remaining" or "X over limit" indicator beside each bar.

Edit until all bars show green

Trim your text until every platform bar that matters to you is green. Use the Copy button to send your finalised text to the clipboard, or Clear to start fresh.

Character Limits — Why Every Platform Counts Every Letter

Why Character Limits Exist on Every Platform

The character limit is one of the oldest and most persistent constraints in digital communication, and its origins are surprisingly technical. SMS messages are capped at 160 characters because the GSM standard — designed in the late 1980s — allocated precisely 1,120 bits per message in its signalling channel. At 7 bits per character for the GSM alphabet, that yields exactly 160 characters. Longer messages must be split across multiple SMS parts, each billed separately by carriers, which is why staying under 160 matters to anyone sending SMS marketing campaigns.

Twitter's original 140-character limit was a direct descendant of this SMS constraint. When Jack Dorsey and Biz Stone launched Twitter in 2006, users could post updates via SMS. A 160-char SMS had to leave 20 characters for the username prefix, which gave tweets their iconic 140-char ceiling. That constraint, born from 1980s radio engineering, shaped how hundreds of millions of people communicate for over a decade.

Beyond technical origins, character limits drive marketing effectiveness. Research across digital advertising platforms consistently shows that shorter copy outperforms longer copy in engagement rate. Email subject lines perform best at 40–50 characters — roughly 6–10 words — because longer subjects get truncated in mobile inboxes used by the majority of ASEAN email readers. Meta descriptions at 155–160 characters hit Google's display sweet spot. The constraint is not just a technical inconvenience; it is a discipline that forces writers to distil ideas to their sharpest form.

Twitter's 280-Character History and What It Changed About Communication

In November 2017 Twitter doubled its character limit from 140 to 280 — but the decision was less about English speakers than it first appeared. Twitter's own research showed that English tweets routinely bumped against the 140-char ceiling, with roughly 9% of English tweets hitting the exact limit. But for Japanese, Chinese and Korean users, the picture was completely different: fewer than 0.4% of Japanese tweets reached 140 characters. Why? Because each CJK ideograph conveys a word or concept, so 140 Japanese characters represents a full, nuanced paragraph — the equivalent of 400–500 English words. The old limit unfairly penalised English speakers while giving CJK users far more expressive room.

"Twitter's move from 140 to 280 characters wasn't for English speakers — Japanese text uses ideograms that convey much more per character, making 140 unfair by design."

After the switch to 280, Twitter reported that only 1% of English tweets reached the new ceiling and that the average tweet length barely changed. The extra headroom removed the anxiety of editing but didn't fundamentally alter the culture of conciseness. For character counters, the lesson is clear: raw character count means different things in different languages. A 280-char English tweet and a 280-char Chinese tweet contain vastly different amounts of information. Twitter handles this by counting CJK characters as 1 character each, unlike some other platforms that count them as 2. URLs on Twitter are automatically shortened to a t.co link counting as exactly 23 characters, regardless of the original URL length — something worth knowing when you're crafting link-heavy posts.

Writing Tight: The ASEAN Marketer's Guide to Short-Form Content

Singapore's bilingual social media landscape presents a unique character-counting challenge. A brand post in Singapore often needs to work in both English and Mandarin — or include both in a single caption. A 150-character Instagram bio that reads fluently in English may become 200+ characters when translated into Mandarin, Malay or Tamil, potentially exceeding the platform limit. ASEAN digital marketers routinely write two separate versions of every caption, one per language, each optimised for its own character budget.

Platform-specific limits matter differently across ASEAN markets too. WhatsApp is the dominant messaging platform across Southeast Asia — and each WhatsApp message supports up to 65,536 characters, making character limits irrelevant for one-to-one chats. Telegram supports 4,096 characters per message, while Line (dominant in Thailand and Japan) allows up to 10,000. TikTok captions are particularly critical: feed captions are truncated at 150 characters before the "more" button appears, and content optimised for TikTok search benefits most from keywords placed within those first 150 characters. For brands trying to reach Thailand's massive TikTok user base or Singapore's young LinkedIn demographic, knowing the exact limit for each platform is not optional — it is table stakes.

The best ASEAN social media practitioners treat every character as prime real estate. On LinkedIn, where posts get maximum algorithmic reach at 150–300 characters, the discipline of the character counter is a competitive advantage. On Instagram, only the first 125 characters of a caption show before the "more" tap — so the hook must land in that window. Short-form mastery, enforced by precise character counting, is the difference between content that gets read and content that gets scrolled past.

10 Facts About Character Limits

Twitter's original 140-character limit (2006–2017) was chosen to fit within a single SMS message (160 chars) with 20 characters left for the username.

Chinese, Japanese and Korean characters each count as 2 characters on some platforms — meaning a 280-char English tweet allows roughly 140 CJK characters.

SMS messages using Unicode (for emoji or Chinese/Malay Arabic script) are limited to just 70 characters per part — not 160 — because Unicode requires 2 bytes per character.

A meta description should ideally be 150–160 characters. Google typically displays 155–160 on desktop and around 120 on mobile before truncating with "…"

LinkedIn posts get maximum reach at 150–300 characters for short posts — despite the 3,000 character limit, engagement drops sharply beyond 600 characters.

Instagram captions can be up to 2,200 characters but only the first 125 characters show before "more" — meaning the hook must appear in the first 125.

WhatsApp messages can be up to 65,536 characters — longer than most novels' average chapter, making character limits essentially irrelevant for messaging.

Email subject lines perform best at 40–50 characters (6–10 words) — longer subjects are truncated in mobile email clients used by the majority of ASEAN email users.

TikTok optimised content appears in search results when captions include keywords within the first 150 characters — making those 150 chars prime SEO real estate on the platform.

YouTube titles are capped at 100 characters for display, with around 70 showing in search results before truncation — making every character in a YouTube title count.

Frequently Asked Questions

Tweets on Twitter / X can be up to 280 characters. This limit was doubled from the original 140 characters in November 2017. URLs in tweets count as exactly 23 characters regardless of their true length, because Twitter automatically shortens all links to t.co URLs. Emojis generally count as 2 characters each.
The 160-character SMS limit comes from the GSM standard developed in the late 1980s, which allocated 1,120 bits in the mobile signalling channel for short messages. Using 7 bits per character for the basic GSM alphabet, that works out to exactly 160 characters. If you send a message using Unicode — required for emoji, Chinese characters, Malay Jawi script, or Tamil — the limit drops to just 70 characters per message part, because Unicode characters use 2 bytes each.
Yes — spaces count as characters on virtually all platforms, including Twitter, SMS, LinkedIn, and in meta tags. This tool shows both the total character count (including spaces) and the count without spaces so you can see both figures at once. The "Characters (no spaces)" count is useful when working with platforms that measure content density rather than total length.
It depends on the platform. Most modern emojis are encoded as Unicode code points outside the Basic Multilingual Plane, meaning they use 2 UTF-16 code units (a "surrogate pair"). On Twitter, standard emojis count as 2 characters. In HTML and meta tags, browsers and search engines generally count each emoji as 1 character visually but the underlying byte count varies. This counter uses JavaScript's native string length, which counts surrogate pairs as 2 — matching Twitter's behaviour for the most common social media use case.
LinkedIn allows up to 3,000 characters for posts, but research consistently shows engagement peaks at 150–300 characters for short-form posts or 1,000–1,300 characters for longer thought-leadership content. Posts beyond 600 characters often see sharply declining engagement. On LinkedIn, the text is truncated with a "see more" link after approximately 210 characters in the feed, so your opening line must capture attention within that window.
The recommended meta description length is 150–160 characters. Google typically displays up to 155–160 characters on desktop and around 120 characters on mobile search results before adding an ellipsis. Keep your most important keywords and call-to-action within the first 120 characters to ensure they survive mobile truncation. Descriptions shorter than 70 characters may be padded by Google with other page content.
Instagram feed captions can be up to 2,200 characters long. However, only the first 125 characters are visible in the feed before the "more" button appears, so your hook must land within that window. Instagram bios are separately capped at 150 characters. For Stories and Reels, text overlays are limited by the on-screen space rather than a hard character count, but keeping text short ensures readability on small screens.
It depends on the platform and the character encoding used. Twitter counts CJK (Chinese, Japanese, Korean) characters as 1 character each — the same as ASCII letters — which is why 140 Japanese characters represented far more content than 140 English characters. Some older systems and SMS gateways count CJK characters as 2 bytes, effectively halving the character budget. This counter uses JavaScript's string length, which counts most CJK characters as 1 code unit, matching Twitter's approach.
Twitter wraps every URL in a t.co shortlink and counts it as exactly 23 characters, regardless of the original URL length. This means a 200-character URL and a 15-character URL both cost you exactly 23 characters in a tweet. This is useful to know when composing tweets with links — you always have 280 − 23 = 257 characters for your text alongside the link. Note that this counter shows the raw character count of your text without Twitter's automatic URL-shortening adjustment.
100% free, forever. No account required, no subscription, no hidden limits, and no character or text-length cap on what you can paste into the tool. RECATOOLS is funded by contextual advertising, not paywalls. The tool runs entirely in your browser — your text is never sent to any server.

Character Counter