Ask Difference

Congrats vs. Congratz — What's the Difference?

Edited by Tayyaba Rehman — By Fiza Rafique — Updated on April 7, 2024
"Congrats" is a widely accepted abbreviation of "congratulations," whereas "congratz" is a more informal, internet-based slang version.
Congrats vs. Congratz — What's the Difference?

Difference Between Congrats and Congratz


Key Differences

Congrats and Congratz both serve as informal abbreviations of the word "congratulations," used to express joy or acknowledgment of someone's achievement or good fortune. "Congrats" is the more commonly accepted and widely used form, recognized in both spoken and written informal communication. It retains a closer resemblance to the original word, making it suitable for a variety of casual contexts. On the other hand, "congratz" embodies a more playful or casual tone, often associated with internet slang or texting language. It suggests a youthful or trendy approach to congratulating someone.
While "congrats" is versatile enough to be used in texts, emails, and social media while still being understood as respectful and genuine, "congratz" might be more restricted in its use, favored in environments or among groups that appreciate internet culture or digital communication nuances. It carries a certain lightheartedness, perhaps adding a sense of fun or emphasis to the congratulatory message.
The spelling "congratz" incorporates the letter "z" at the end, a common feature in internet slang that aims to add emphasis or a stylistic twist to words. This alteration can make the term appear more informal or whimsical, possibly conveying a stronger sense of enthusiasm or excitement. However, because of its informal nature, "congratz" may not be appropriate in more formal or professional contexts where traditional spelling and formality are valued.
In terms of acceptability, "congrats" is more likely to be accepted in a broad range of informal contexts, including within professional environments where a degree of casual communication is permissible. "Congratz," while also an expression of goodwill, is best reserved for casual, personal interactions among individuals who share a familiarity with internet language and culture.
Despite these differences, the intent behind both "congrats" and "congratz" is fundamentally the same. They are both used to convey messages of congratulations in a relaxed and friendly manner. The choice between them might depend on the relationship between the individuals involved, the communication medium, and the overall tone desired by the sender.

Comparison Chart


Informal, but widely accepted.
Very informal, tied to internet slang.

Usage Context

Broad: texts, emails, social media.
More niche: closely tied to digital communications among younger users.


Friendly and genuine.
Playful, trendy, emphasizing enthusiasm.


Suitable for a variety of informal contexts.
Best reserved for casual, personal interactions.

Spelling Origin

Direct abbreviation of "congratulations."
Incorporates "z" for stylistic, emphatic effect.

Compare with Definitions


Suitable for informal yet respectful communication.
Just heard the good news, congrats!


Incorporates a "z" for stylistic emphasis.
Congratz! Knew you could do it!


Reflects a genuine tone of celebration and goodwill.
Huge congrats on your achievement; you deserve it!


Implies a casual, trendy approach to congratulating someone.
Saw your post about the promotion, congratz!


A widely recognized informal abbreviation of "congratulations."
Congrats on your new job!


Favored in digital communications, especially among youth.
Your project was awesome, congratz!


Versatile in use across different media.
Sent you a card saying congrats on the graduation.


A playful, internet slang version of "congratulations."
Congratz on winning the game!


Retains a close resemblance to the original word.
Everyone's saying congrats, and I join in the chorus!


Best used among friends or in informal, personal settings.
Congratz on the new car! Can't wait for a ride.




(Internet slang) congratulations


(informal) congratulations
You were cast in the show? Congrats!


(informal) congratulations
Accept our congrats for all your hard work!

Common Curiosities

Why do some people use "z" at the end of words like "congratz"?

Using "z" is a stylistic choice common in internet slang, aiming to add emphasis or a playful tone.

What's the difference between congrats and congratz?

"Congrats" is a widely accepted informal abbreviation of "congratulations," while "congratz" is more informal, often used in internet slang.

Is it appropriate to use "congratz" in a work email?

Generally, "congrats" is preferable for work-related communications, even informal ones, due to its broader acceptability.

How did "congratz" become popular?

It gained popularity through internet culture and digital communication, where playful alterations of words are common.

Are there any other common variations of "congratulations" besides "congrats" and "congratz"?

These are the most common informal variations, though creative spellings and emojis are also used to convey the same sentiment in digital communications.

Can "congratz" be seen as less sincere than "congrats"?

Not necessarily; sincerity often depends more on the context and relationship between individuals than on the specific spelling.

Is "congratz" accepted in formal writing?

No, "congratz" is considered too informal for formal writing. It's best used in casual, personal interactions.

What should I consider when choosing between "congrats" and "congratz"?

Consider your audience, the formality of the setting, and the medium of communication to decide which abbreviation is most appropriate.

Does the use of "congratz" vary by age group?

Yes, younger individuals more familiar with internet slang might use or encounter "congratz" more often.

Can I use "congrats" in a text message to a friend?

Absolutely, "congrats" is suitable for informal texts to friends, family, and acquaintances.

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Author Spotlight

Written by
Fiza Rafique
Fiza Rafique is a skilled content writer at, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.

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