AI prompts that actually work
20 copy-and-paste prompts for restoring old photos, building headshots and staging rooms — plus 25 free tools that run entirely in your browser. No account, no upload, no daily limit.
Paste anything — we'll work out what it is
Nothing is sent anywhere. Detection runs on your device.
Your data never leaves
Every tool is JavaScript running in your tab. There is no upload endpoint, so pasting a production payload or a real token is safe.
No signup, no daily limit
Other converters cap you at a handful of free tasks per day. Nothing here is metered, gated, or behind an account.
Your work follows you
Format some JSON, then jump to the CSV converter — your input is already there. No copying back and forth between tabs.
Popular prompts
View all 20 →- Restore an old, damaged photographRepairs cracks, scratches, fading and water damage on a scanned print while keeping the person's real face.
- Colourise a black-and-white photoAdds believable period-accurate colour to a monochrome photograph.
- Sharpen a blurry, low-resolution photoRecovers detail in a soft or small image without the waxy over-sharpened look.
- Turn a snapshot into a professional headshotConverts a casual photo into a clean corporate headshot without changing the person.
- Make a compliant passport photo from a selfieReframes and relights a selfie to standard ID-photo requirements.
- Clean white-background product shotTurns a phone photo of a product into a marketplace-ready catalogue image.
All tools
Press / anywhere to jump straight to one.
JSON & Data
Format, validate and convert structured data
- JSON FormatterFormat, beautify, minify and validate JSON instantly. Errors show the exact line and column. Runs 100% in your browser.
- JSON to CSVTurn a JSON array into a clean CSV spreadsheet. Nested objects are flattened automatically. Free, no signup, no upload.
- CSV to JSONPaste a CSV or drop a spreadsheet export and get clean JSON back instantly. Auto-detects the delimiter and number types.
- JSON to YAMLConvert JSON into readable YAML for Kubernetes, Docker Compose, CI pipelines and config files. Instant and private.
- YAML to JSONConvert YAML config into JSON and catch indentation mistakes at the same time. Nothing is uploaded anywhere.
Convert, merge, split and extract — nothing uploaded
- PDF to WordTurn a PDF into an editable Word (.docx) document in your browser. Free, no signup, no upload, no page limit.
- Word to PDFTurn a .docx document into a clean PDF with selectable text and working links. Free, private, no upload.
- Merge PDFCombine several PDFs into one document, in the order you choose. Unlimited files, no watermark, nothing uploaded.
- Split PDFExtract a page range from a PDF, or break it into one file per page. Free, unlimited, entirely in your browser.
- PDF to JPGTurn every page of a PDF into a JPG or PNG image at up to 300 DPI. Free, no watermark, nothing uploaded.
- PDF to TextPull the plain text out of any PDF, with page breaks preserved. Instant, free and completely private.
- Image to PDFCombine JPG, PNG, WebP or HEIC images into a single PDF. Choose A4, Letter or fit-to-image. Built in your browser, never uploaded.
AI Tools
Real AI that runs on your device — free, private, no account
Images
Convert, compress and resize without uploading
- Image ConverterConvert between JPG, PNG, WebP, AVIF, GIF, BMP and iPhone HEIC. Batch convert as many as you like, free, with nothing uploaded.
- HEIC to JPGTurn iPhone HEIC and HEIF photos into JPG, PNG or WebP. Batch convert with no upload, no watermark and no account.
- Compress ImageShrink JPG, PNG, WebP and HEIC images with a live quality slider and instant before/after sizes. No upload, no limits.
- Resize ImageResize images by width, height, percentage, or to fit a box. Aspect ratio always preserved. Batch resize free in your browser.
- Image to Base64Turn any image into a Base64 data URI, ready-made CSS background, HTML img tag or Markdown. Instant and private.
Encoding
Encode, decode and inspect
- Base64Encode text to Base64 or decode it back, with full Unicode and URL-safe support. Works offline in your browser.
- JWT DecoderDecode a JSON Web Token to read its header, payload and expiry. Your token is never transmitted or logged.
- URL EncoderPercent-encode or decode URLs and query strings, and break any URL into its parts. Instant, private, free.
Generators
Create IDs, hashes and secrets
Why another set of developer tools?
Because the popular ones bury a small textarea under four ad slots, ask you to sign in after two conversions, and quietly send your file to their server to do work your browser could do instantly. SleekPrompt does none of that. Load a page once and every tool keeps working with your Wi-Fi off — and every prompt is free to copy, with no account and no credit system.