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Thesis Statement Builder

Enter your essay topic, position, and reasons — get three thesis statement variants at different levels of sophistication.

What makes a good thesis?

Specific
A precise claim — not "X is important" but "X is the primary cause because Y"
Arguable
A reasonable person could disagree — if everyone agrees, it's a fact not a thesis
Provable
You can support it with evidence across the body paragraphs

The test a thesis has to pass

A thesis statement has to be three things at once, and most weak ones fail on exactly one of them. It must be specific — a precise claim rather than an announcement of subject matter. It must be arguable — a reasonable, informed person could disagree. And it must be provable with the evidence you can actually assemble in the word count you have.

The arguable test is the one that catches most drafts. “Social media has changed political campaigning” is true, and nobody disputes it, so there is nothing left for the essay to do. A thesis that cannot be disagreed with produces a descriptive essay however well it is written.

Turning a topic into a claim

The move is almost mechanical. Start with the topic. Ask what is genuinely contested about it. Take a side. Then add the “because” — the reasons that will become your body paragraphs.

Topic: the 1834 Poor Law. Contested: whether it was primarily economic or moral in intent. Claim: the 1834 Poor Law was driven more by anxieties about moral character than by fiscal pressure. Because: the language of the commission reports, the design of the workhouse test, and the timing relative to actual relief spending. That last clause is the essay’s structure, already written.

Three failure modes worth knowing

The overclaim. “X was the single most important cause of Y.” Superlatives require you to dispose of every rival explanation, which is rarely possible in 2,000 words. Hedge deliberately: “a more significant cause than has generally been recognised” is defensible and still arguable.

The list. A thesis that names three unrelated factors produces three unrelated paragraphs. The factors need a relationship — sequence, tension, hierarchy — or the essay has no argument, only an inventory.

The question. A thesis is an answer. If it ends in a question mark, you have restated the prompt.

Treat the statements this tool generates as drafts to sharpen, not as finished sentences to paste. The phrasing that survives is usually the one you rewrite once you know what the evidence actually supports. The academic style course covers the hedging language that makes a strong claim defensible.

Common questions

What makes a good thesis statement?
A good thesis statement is specific, arguable, and provable. Specific means it makes a precise claim rather than a topic announcement. Arguable means a reasonable person could disagree with it — if everyone agrees, it is not a thesis, it is a fact. Provable means you can support it with evidence in the body paragraphs. Avoid vague claims ("X is important"), overclaims ("X is the single most important thing ever"), and underclaims that describe rather than argue.
How long should a thesis statement be?
A thesis statement is typically one to two sentences. It should be specific enough to make a real claim but concise enough to be stated clearly at the end of the introduction. For longer essays (3,000+ words), a two-sentence thesis that states the main claim and signals the argument structure is appropriate. For shorter essays, one precise sentence is usually sufficient.
Where does the thesis statement go in an essay?
The thesis statement goes at the end of the introduction — as the final sentence or two before the body begins. This placement works because the introduction first provides context (why the question matters), then narrows to scope (what this essay addresses), and finally delivers the thesis (what it argues). Placing the thesis first — before context — produces an introduction that feels unmoored; placing it at the end ensures the reader understands the question before encountering your answer.

Keep going

Essay structure plannerBuild the paragraphs that will prove the thesis.Academic Writing courseArgument construction from claim to conclusion.Academic Style courseHedging, register and precision.Paragraph checkerCheck each paragraph actually supports the claim.