Login vs. Logon : Quelle est la différence ?
log in c'est l'action (le verbe), et login c'est la chose (le nom). Facile, non ?
Grammar Rule in 30 Seconds
Use 'log in' or 'log on' as verbs (two words) and 'login' or 'logon' as nouns (one word).
- Verbs have a space: 'I need to log in to my account.'
- Nouns/Adjectives are one word: 'Enter your login details here.'
- Use 'login' for websites and 'logon' for corporate networks or Windows systems.
Overview
log in, login et logon apparaissent partout. Pour beaucoup d'apprenants francophones, ces mots semblent interchangeables. Après tout, ils se prononcent presque de la même manière et concernent tous l'accès à un compte.log in (en deux mots) est un verbe qui décrit une action, alors que login (en un seul mot) est un nom ou un adjectif qui décrit une chose ou un concept. Quant à logon, il suit la même logique grammaticale que login, mais il appartient à un registre plus formel ou spécifique à l'informatique d'entreprise.setup, workout ou backup.log in et login, il faut se pencher sur deux piliers de la grammaire anglaise : les phrasal verbs (verbes à particule) et la nominalisation.log in)log) et d'une particule (ici in). Ensemble, ils créent un sens nouveau. À l'origine, le verbe log signifie consigner des informations dans un registre (comme un capitaine de navire qui écrit dans son journal de bord).in, on obtient l'action moderne de s'identifier pour accéder à un système sécurisé.I logged in (au passé) et non I loginned.login)login.- Tu fais un
work out(verbe) pour rester en forme. L'activité est tonworkout(nom). - Un système peut
back up(verbe) tes données. Le résultat est unbackup(nom). - Tu peux
set up(verbe) un logiciel. La configuration obtenue est lesetup(nom).
logonlogon est simplement la version nominalisée du verbe log on. Historiquement, log on était utilisé pour les connexions à des réseaux de serveurs massifs ou des terminaux informatiques lourds. Aujourd'hui, logon a conservé cette connotation plus formelle et technique.login est le terme du quotidien (réseaux sociaux, sites web), logon est celui de l'administrateur système.log inlog change. La particule in reste invariable.- Présent :
I log in to my email every morning.(Je me connecte à mes emails chaque matin.) - Passé :
She logged in ten minutes ago.(Elle s'est connectée il y a dix minutes.) - Futur :
We will log in later for the meeting.(Nous nous connecterons plus tard pour la réunion.) - Impératif :
Please log in to continue.(Veuillez vous connecter pour continuer.)
I / You / We / They log in | I log in daily. |He / She / It logs in | He logs in at 9 AM. |logged in | I logged in yesterday. |logging in | The system is logging in. |will log in | You will log in tomorrow. |login ou logon- En tant que sujet :
Your login is incorrect.(Ton identifiant est incorrect.) - En tant qu'objet :
I forgot my login.(J'ai oublié mon identifiant.) - Au pluriel :
The server tracks all recent logins.(Le serveur suit toutes les connexions récentes.)
login ou logonThe login page is loading.(La page de connexion charge.)Click the login button.(Clique sur le bouton de connexion.)There was a login error.(Il y a eu une erreur de connexion.)
log in | L'action de s'identifier | You need to log in. |login | L'identifiant ou l'accès | What is your login? |login | Décrit un objet lié à l'accès | Where is the login screen? |logon | Terme technique pour l'accès | The logon was successful. |logon | Décrit un processus technique | Check the logon procedure. |log in (le verbe) ?- Instructions :
Log in with your professional email. - Questions :
How often do you log in to the platform? - Récit :
I tried to log in, but the server was down.
login (nom/adjectif) ?login qu'il te faut.- Identifiants :
Please keep your login details secret. - Interface :
The login link is at the bottom of the page. - Événement :
Your last login was on Friday.
logon (nom/adjectif) ?logon sera plus approprié. Il donne un ton plus sérieux et institutionnel.- Réseau :
The network logon requires a VPN. - Sécurité :
The system records every logon attempt. - Support technique :
Contact support if the logon screen freezes.
login. Si c'est pour un administrateur système sur un serveur, utilise logon.login (le nom) comme un verbeLogin. On finit par croire que c'est le verbe.- Erreur :
I need to login to my account. - Correction :
I need to log in to my account. - Pourquoi ça arrive : En français, nous n'avons pas cette distinction d'espace. On utilise le même mot « connexion » ou l'anglicisme « login » pour tout. Rappelle-toi : s'il y a un sujet devant (I, you, he), il faut deux mots.
- Erreur :
Please enter your log in details. - Correction :
Please enter your login details. - Pourquoi ça arrive : On pense que
log inest la forme « noble » et on l'utilise même comme adjectif. Erreur ! Si le mot décrit un autre nom (commedetails), il devient un adjectif et doit être en un seul mot.
log-in)log-in avec un trait d'union pour le nom ou l'adjectif.- Usage daté :
Check your log-in status. - Usage moderne :
Check your login status. - Conseil : Oublie le trait d'union. Dans l'anglais moderne et numérique, la forme soudée
loginest devenue le standard absolu. Le trait d'union alourdit inutilement ton texte.
Set up | Setup | I need to set up my desk. I like my new setup. |Back up | Backup | Always back up your files. Where is the backup? |Work out | Workout | I work out at 6 AM. This was a hard workout. |Check in | Check-in | You can check in at 3 PM. The check-in is at 3 PM. |Break down | Breakdown | My car might break down. I had a mental breakdown. |check-in, le trait d'union est resté plus fréquent que pour login, mais la tendance à souder les mots (checkin) progresse aussi.Log in vs. Sign insign in et signin. Quelle est la différence ?Log in/Log on: Suggère souvent une entrée dans un système plus technique ou une session informatique.Sign in: Est plus courant pour les services web modernes (Google, réseaux sociaux). C'est perçu comme un peu plus léger et moins intimidant techniquement.
sign in pour l'action, signin pour le nom/adjectif.log into ?in et to.I logged into the server. (Je me suis connecté au serveur).login to pour l'action, c'est soit log in to (trois mots), soit log into (deux mots).Login si c'est un verbe ?log in.Log out et Log off, c'est la même chose ?log in et log on. Log out est le terme standard pour quitter une session. Log off est plus formel ou lié aux réseaux d'entreprise. Et devine quoi ? Pour le nom, on dira logout ou logoff en un seul mot !logon est vraiment nécessaire dans mes emails ?login partout. C'est le mot que tout le monde comprend. Utiliser logon sans raison peut parfois paraître un peu trop formel, un peu comme si tu utilisais « nonobstant » dans une conversation entre amis au café.Conjugating the Verb 'Log in'
| Tense | Subject | Verb Form | Example |
|---|---|---|---|
|
Present Simple
|
I / You / We / They
|
log in
|
I log in daily.
|
|
Present Simple
|
He / She / It
|
logs in
|
She logs in daily.
|
|
Past Simple
|
All subjects
|
logged in
|
They logged in at 9 AM.
|
|
Present Continuous
|
All subjects
|
logging in
|
He is logging in now.
|
|
Future
|
All subjects
|
will log in
|
We will log in later.
|
|
Present Perfect
|
All subjects
|
have/has logged in
|
I have already logged in.
|
Noun vs. Verb Comparison
| Type | Form | Function | Example |
|---|---|---|---|
|
Verb
|
log in
|
Action
|
I need to log in.
|
|
Noun
|
login
|
The ID/Password
|
What is your login?
|
|
Adjective
|
login
|
Describes a noun
|
The login screen.
|
Meanings
The process of identifying oneself to a computer system or website to gain access to restricted content or features.
Action (Verb)
The act of entering credentials to enter a system.
“You must log in before you can post a comment.”
“I tried to log on to the server, but it was down.”
Identity/Credentials (Noun)
The username and password used to gain access.
“I forgot my login for the bank website.”
“Keep your logon information in a secure place.”
Interface/Location (Adjective)
Describing the screen or area where you enter credentials.
“The login screen is currently frozen.”
“Click the logon button at the top right.”
Reference Table
| Forme | Nature grammaticale | Fonction | Exemple |
|---|---|---|---|
|
`log in`
|
Locution verbale
|
L'action d'accéder
|
You need to log in.
|
|
`login`
|
Nom
|
Les identifiants ou le processus
|
He forgot his login.
|
|
`login`
|
Adjectif
|
Décrit le nom
|
This is the login page.
|
|
`logon`
|
Nom
|
Mot formel pour le processus
|
The logon was successful.
|
|
`logon`
|
Adjectif
|
Décrit le nom (formel)
|
Enter info at the logon screen.
|
|
`log into`
|
Locution verbale
|
Action avec un objet direct
|
She will log into the app.
|
Spectre de formalité
Please authenticate using your credentials. (General access)
Please log in to your account. (General access)
Just log in. (General access)
Hop on the app. (General access)
Comparaison : Login vs. Log in vs. Logon
Lequel dois-je utiliser ?
Décris-tu une action ?
Est-ce pour un système informatique formel ou d'entreprise ?
Le monde de la 'connexion'
L'Action (Verbe)
- log in Je vais me connecter maintenant.
La Chose (Nom)
- login Ma connexion a échoué.
- logon L'écran de connexion.
Le Contexte est Clé
Utilise 'login' pour...
- • Réseaux sociaux
- • Sites d'achat
- • Applications de streaming
Utilise 'logon' pour...
- • Réseaux d'entreprise
- • VPN d'entreprise
- • Manuels IT
- • Invites système
Exemples par niveau
I log in to my email.
I log in to my email.
Please log in now.
Please log in now.
My login is 'User123'.
My login is 'User123'.
Where is the login button?
Where is the login button?
Did you log in to the website yesterday?
Did you log in to the website yesterday?
I cannot log on to the school network.
I cannot log on to the school network.
The login screen is red.
The login screen is red.
He is logging in to his account.
He is logging in to his account.
You should change your login password every month.
You should change your login password every month.
After you log in, click on the 'Settings' icon.
After you log in, click on the 'Settings' icon.
The server requires a secure logon for all employees.
The server requires a secure logon for all employees.
I've been trying to log on for ten minutes!
I've been trying to log on for ten minutes!
The system administrator reset my logon credentials.
The system administrator reset my logon credentials.
Ensure that the login process is encrypted.
Ensure that the login process is encrypted.
Users are failing to log in due to a database error.
Users are failing to log in due to a database error.
The application features a social media login option.
The application features a social media login option.
The legacy system still utilizes a 'logon' prompt instead of the modern 'sign-in' interface.
The legacy system still utilizes a 'logon' prompt instead of the modern 'sign-in' interface.
Logging in via a third-party provider can streamline the user experience.
Logging in via a third-party provider can streamline the user experience.
The vulnerability was found within the logon authentication module.
The vulnerability was found within the logon authentication module.
He successfully logged on to the mainframe after several attempts.
He successfully logged on to the mainframe after several attempts.
The distinction between 'login' and 'logon' is increasingly blurred in colloquial digital discourse.
The distinction between 'login' and 'logon' is increasingly blurred in colloquial digital discourse.
The software architect insisted on using 'logon' to maintain consistency with the underlying OS terminology.
The software architect insisted on using 'logon' to maintain consistency with the underlying OS terminology.
By logging in, the user implicitly agrees to the updated terms of service.
By logging in, the user implicitly agrees to the updated terms of service.
The transition from a manual logon to biometric authentication has improved security significantly.
The transition from a manual logon to biometric authentication has improved security significantly.
Facile à confondre
Learners think they have different technical functions.
Learners aren't sure if 'into' is one word or two.
Learners don't know which one to use as the opposite.
Erreurs courantes
I login to Facebook.
I log in to Facebook.
What is your log in?
What is your login?
I logined yesterday.
I logged in yesterday.
Log in into the app.
Log in to the app.
He log in every day.
He logs in every day.
I am login now.
I am logging in now.
The log on screen is blue.
The logon screen is blue.
I need to log-in.
I need to log in.
Please log on the website.
Please log in to the website.
My logons are saved.
My logins are saved.
The user logined successfully.
The user logged in successfully.
Structures de phrases
I need to ___ to my ___ account.
Please enter your ___ on the ___ screen.
After ___ in, you will see the ___.
The system failed to ___ the user ___.
Real World Usage
You need to log in to see this post.
Please complete your Windows logon before the meeting.
For your security, your login session has timed out.
Enable TouchID for a faster login.
The user is unable to log on to the VPN.
Follow the instructions on the login page to get internet access.
Le test de l'action
log in. Par exemple, 'Please [enter] here' fonctionne, donc 'Please log in here' est correct.Attention aux verbes
log in. Please log in now.Même règle pour 'Logout'
log out (verbe) et 'logout' (nom/adjectif). Tu diras 'You should log out' mais 'Click the logout button'.'Logon' est un jargon d'entreprise
The system requires a secure logon.
Smart Tips
Use 'Log In' (two words) if it's a call to action, or 'Login' (one word) if it's a header for the section.
Don't worry about the difference; just treat it as a synonym for 'login' specifically for your computer hardware.
Try replacing the word with 'Enter'. If 'Enter' works, you need two words ('log in'). If 'Entry' works, you need one word ('login').
Always double the 'g' in 'logged'.
Prononciation
Stress Pattern
For the verb 'log IN', the stress is usually on the second word. For the noun 'LOGin', the stress is on the first syllable.
Rising on Verb
Did you log IN? ↗
Asking for confirmation of an action.
Mémorise-le
Moyen mnémotechnique
If it's an action, give it space. If it's a thing, join the race.
Association visuelle
Imagine a physical door. To 'log in' (verb), you must walk through the space of the doorway. The 'login' (noun) is the solid key in your hand.
Rhyme
Two words for the act, one word for the fact.
Story
A programmer named Log was trying to enter a building. He had to 'log in' (action) using his 'login' (keycard). He noticed the sign on the door said 'Logon' because it was a very old building.
Word Web
Défi
Go to three different websites and look at the buttons. Do they say 'Log in', 'Login', 'Sign in', or 'Logon'? Write down which ones use which term.
Notes culturelles
In the tech world, 'login' is often used as a verb in casual speech and even in some code (e.g., a function named 'loginUser'). However, in documentation, the space is strictly maintained.
Both use 'login' and 'logon' similarly, but 'sign in' is slightly more common in UK retail and banking websites compared to US counterparts.
Older IT professionals who worked with IBM mainframes or early Windows NT systems are much more likely to use 'logon' and 'logoff' than younger web developers.
The term 'log' comes from the 16th-century 'chip log,' a wooden board used to measure a ship's speed. The results were recorded in a 'logbook.'
Amorces de conversation
How many different logins do you have to remember for work or school?
Have you ever had trouble logging in to an important account?
Do you prefer websites that let you log in with Google or Facebook?
If you were designing an app, would you use the term 'Log in' or 'Sign in'?
Sujets d'écriture
Erreurs courantes
Test Yourself
I can't remember my ___ details for my bank account.
login est le bon choix ici. log in est un verbe et logon est un peu trop formel pour ce contexte.Choose the correct sentence:
log in est la locution verbale correcte. login est un nom et logon est un nom qui ne peut pas être utilisé comme verbe.Find and fix the mistake:
My computer is stuck on the Windows log in screen.
login et logon fonctionnent tous les deux, mais logon est très courant dans le contexte d'un système d'exploitation Windows. log in est un verbe et ne peut pas être utilisé ici.Score: /3
Exercices pratiques
8 exercisesI forgot my ___ for the school website.
Which sentence is correct?
Find and fix the mistake:
He logined to the computer at 8:00 AM.
Noun: 'The login was successful.' -> Verb: 'He ___ successfully.'
Click the [login] button.
User: I can't get into the system. Support: Did you try to ___ with your new password?
1. Logon, 2. Login, 3. Log in
'Logon' and 'Log in' mean the same thing in most modern contexts.
Score: /8
Practice Bank
13 exercisesFirst, you need to ___ with the credentials we sent you.
Choose the correct sentence:
The corporate portal requires a special ___ process.
She forgot to logout of her email on the public computer.
Translate into English: 'I forgot my login'
Arrange these words into a sentence:
Match the term with its function:
The ___ for the conference Wi-Fi is on the back of your name tag.
We need to setup a new log in for the temporary employee.
Choose the correct sentence:
Translate into English: 'Can you log in for me?'
Arrange these words into a sentence:
Match the context to the term:
Score: /13
FAQ (8)
Yes, but it is less common than `login`. You will mostly see it in corporate IT environments, Windows system screens, and technical documentation for servers.
In casual speech and texting, people do it all the time. However, in formal writing or professional emails, you should always use two words: `log in`.
There is no functional difference. `Log in` sounds slightly more technical, while `sign in` sounds more user-friendly. Most websites choose one based on their brand style.
Hyphens were common in the 1990s, but they are rarely used now. Stick to `login` (noun) or `log in` (verb).
Both are used, but `log in to` (three words) is technically more accurate because `in` is part of the phrasal verb `log in`.
The opposite of `log on` is `log off`. Similarly, the opposite of `log in` is `log out`.
Windows has used the term `logon` since its early days (Windows NT). It is a legacy term that has stayed part of the operating system's identity.
As a noun, it is `logins`. For example: 'I have too many logins to remember.'
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Iniciar sesión / Inicio de sesión
Spanish uses two distinct phrases instead of just adding/removing a space.
Se connecter / Connexion
French uses completely different word endings for noun and verb.
Einloggen / Login
German capitalizes the noun (Login) and adds a prefix to the verb (ein-).
ログインする (Roguin suru) / ログイン (Roguin)
The addition of 'suru' clearly marks the verb form.
تسجيل الدخول (Tasjīl al-dukhūl)
It is a literal descriptive phrase rather than a technical metaphor like 'log'.
登录 (Dēnglù)
Context alone determines if it is a noun or a verb.
Learning Path
Prerequisites
Vidéos associées
Related Grammar Rules
Dialecte vs Langue : Quelle est la différence ?
### Overview Déterminer la limite exacte entre une `language` (langue) et un `dialect` (dialecte) est l'un des défis le...
Nowadays vs. Now-a-days : Quelle est la différence ?
On va parler aujourd'hui d'un mot que tu as sûrement croisé mille fois en lisant des articles ou en regardant tes séries...
Let them vs. Let they : Quelle est la différence ?
### Overview Comprendre la différence entre `let them` et `let they` est une étape cruciale pour franchir le cap du niv...
Quite vs. Quiet : Quelle est la différence ?
### Overview L'anglais est une langue fascinante, mais elle peut être terriblement agaçante quand elle décide de créer...
Said vs. Told : Quelle est la différence ?
### Overview Si tu as déjà hésité entre `say` et `tell` en plein milieu d'une phrase, rassure-toi : c'est l'un des obst...