Random sentence generator
Pick how many sentences you want and whether they should be simple, compound or a mix. Each one is built from grammar templates and word lists, so it reads correctly even when the meaning is silly.
Runs in your browser: nothing you enter is sent anywhere.
How to use it
- Set the number of sentences, from 1 to 20.
- Choose Simple, Compound or Mixed.
- Press Generate again for a new set, or Copy to take them all, one per line.
The sentences appear as soon as the page loads; a new set is drawn whenever you change a setting.
How the sentences are made
Each sentence follows one of a few patterns:
- subject + intransitive verb + adverb: The shy baker smiled nervously.
- subject + verb + object: A curious child painted the castle.
- subject + verb + object + place: The old sailor found a key near the river.
- an optional time phrase in front: Yesterday, the owl waited beside the bridge.
A noun phrase is “the” or “a/an” followed by an optional adjective and a noun. The word “a” becomes “an” before a vowel. A compound sentence joins two such clauses, and the second one keeps a lowercase start: The pilot carried a basket, but the dragon slept.
Good to know
All verbs are in the past tense and all nouns are singular, which avoids agreement mistakes. The vocabulary is small and plain on purpose, so the output is safe to use in tests and demos.
Frequently asked questions
How are the sentences built?
Each sentence is assembled from templates such as subject + verb + object + place, using fixed lists of 40 nouns, 20 adjectives, 34 verbs, 8 adverbs, 8 prepositions and 8 time phrases. Articles are chosen by the next word (a fox, an old fox), so grammar stays correct.
What is the difference between simple and compound?
A simple sentence has one clause, for example "The brave pilot found a map." A compound one joins two clauses with a conjunction: and, but, so, because, while, after, before or until. Mixed gives each sentence an equal chance of being either.
Are the sentences really random?
The choices come from the browser's cryptographic random number generator, so there is no pattern between draws. With a limited vocabulary you will see familiar words come back, but whole sentences rarely repeat.
Can I use them for tests or writing practice?
Yes. They suit placeholder text, typing practice, writing prompts and checking how a layout handles real sentences. They are not meant to be meaningful, and everything is past tense and singular by design.