How do I write a good Lovable prompt?

Describe one concrete outcome, give real content and constraints, and say what NOT to touch. Plan first for anything non-trivial, then build in small steps.

How do I get Lovable to follow my design properly?

Give Lovable concrete references — a screenshot, a site to draw from, exact colours and fonts — and store them in Project knowledge so every prompt is checked against the same design rules.

How do I give Lovable a website to use as inspiration?

Paste the site's URL in your prompt and describe which parts to borrow — layout, spacing, tone — Lovable can't literally browse and clone it, so be specific about what you want copied.

How do I get Lovable to copy a design style without copying the website?

Ask for the underlying pattern — layout, spacing, type scale — in your own words and colours, not the site's actual assets, text or exact visual identity.

How do I upload images to Lovable?

Attach images directly in the chat message box — Lovable can use them as design references or as assets to place in your app (e.g. a logo or product photo).

How do I get Lovable to use my logo?

Attach your logo file in chat and tell Lovable exactly where to place it (header, favicon, footer) — it won't guess sizing or position from the file alone.

How do I give Lovable my brand colours?

Give exact hex codes in your prompt or Project knowledge, name which role each colour plays (primary, accent, background), and ask Lovable to apply them via the Tailwind/shadcn theme, not one-off styles.

How do I get Lovable to use a specific font?

Name the exact font (e.g. from Google Fonts) and tell Lovable to load it and apply it across the theme, not just the current page.

How do I make Lovable build one feature at a time?

Ask for one clearly-scoped feature per prompt and confirm it works in Preview before moving on — bundling several features into one message makes failures harder to isolate and revert.

How do I stop Lovable changing things I didn't ask it to change?

State explicitly what must stay unchanged in the same prompt, keep requests narrow, and check the diff/preview after each change so unintended edits are caught immediately.

How do I tell Lovable to only edit one section?

Name the exact page, component or element (or select it via the preview toolbar) and explicitly say the rest of the app should stay unchanged.

How do I get Lovable to plan a feature before building it?

Switch to Plan mode and describe the feature there — Lovable will ask questions and lay out a structured plan for you to approve before any code is written.

How do I get Lovable to review existing code before making changes?

Ask Lovable directly, ideally in Plan mode, to look at the relevant files or feature first and summarise how it currently works before proposing any changes.

How do I make Lovable ask me questions before building?

Use Plan mode and explicitly ask Lovable to raise questions or ambiguities before building — it's designed to clarify requirements first rather than guess.

How do I get better results from Lovable prompts?

Be specific and concrete, use real content, plan before building complex features, work in small steps, and review each result in Preview before prompting again.

Why does Lovable misunderstand my prompts?

Usually the prompt is ambiguous, references something that doesn't exist yet, or bundles too many changes at once — narrow it, add references, and split it up.

Should I use screenshots when prompting Lovable?

Yes, for layout and visual matching — a screenshot removes ambiguity that words leave open, especially for spacing, alignment and component styling.

How do I make Lovable match a screenshot?

Attach the screenshot, say precisely what to match (layout, spacing, colours, all of it), and iterate with follow-up prompts comparing Preview against the image side by side.

How do I safely make large changes to a Lovable project?

Last checked 31 Aug 2026

Short answer

Plan the change first, bookmark a known-good version before starting, break it into small ordered steps, and check Preview between each step so you can revert cleanly if one goes wrong.

Before you start

Bookmark the current version in Version history as a clean fallback point.
Use Plan mode to think through the change end to end and get a step-by-step plan you can review before any code changes — see /questions/how-do-i-get-lovable-to-plan-a-feature-before-building-it.
Ask Lovable to review the existing code relevant to the change first, especially if it's a part of the app you didn't build recently — see /questions/how-do-i-get-lovable-to-review-existing-code-before-making-changes.

While you build

Work through the plan one step at a time, not as one giant prompt (/questions/how-do-i-make-lovable-build-one-feature-at-a-time).
Check Preview after every step and confirm nothing outside the intended scope changed.
State constraints on each prompt — what must stay untouched (/questions/how-do-i-stop-lovable-changing-things-i-didn-t-ask-it-to-change).
If you're changing anything involving the database schema, roles, or RLS policies, ask Lovable to explain the change in plain terms before applying it — schema and permission mistakes are harder to spot visually than UI ones.

If something goes wrong

Revert to your bookmarked version in Version history rather than trying to patch forward from a broken state — see /questions/how-do-i-undo-a-bad-lovable-change.

Table: safety checklist for a large change

Step	Why
Bookmark current version	Guaranteed clean fallback
Plan mode walkthrough	Catch wrong assumptions before code exists
Review existing code first	Avoid conflicting with what's already there
Build in small steps	Isolate failures
Preview after each step	Catch drift early
Revert, don't patch, on failure	Faster and more reliable

What usually goes wrong

Making a large change directly in Chat/Build mode with no plan. This is the highest-risk pattern; a multi-part feature built in one go is hard to debug if any part fails.
Not bookmarking first. Without a clear fallback point, you're relying on remembering which of many auto-saved versions was actually stable.
Changing production data or live payments settings without a staging step. For anything touching money or user data, test with non-production credentials first where possible.

For changes that are business-critical (payments, user data migrations, a full redesign of a live site), it's worth having a professional review the plan before you build — PromptSites.com does exactly this kind of review and fix work for existing Lovable projects.

Sources

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