38 tools, free forever
Every tool, grouped by job
Candid Tools is a free collection of client-side image editors, PDF utilities, formatters and lookups that process your files entirely in the browser, without uploading them to a server.
Images
Blur Brush
Interactive tool to selectively blur parts of images for privacy
Rotate Image
Rotate images in 90° increments
Resize Image
Resize an image to exact width and height
Crop Image
Crop an image to a selection you draw
LinkedIn Image Editor
Create a LinkedIn profile image with custom text overlay
Draw Arrow
Draw arrows on images
Image Convert
Convert images to different formats
HEIC to PNG
Convert HEIC/HEIF iPhone photos to PNG
PNG to JPG
Convert PNG images to JPG
WebP to JPG
Convert WebP images to JPG
Flip Image
Flip images horizontally or vertically, supporting SVG files
Image Compressor
Compress (condense) images while maintaining dimensions with customizable quality
Image Compare
Upload two images and create side-by-side comparison for social media
Gradient Background
Add a gradient background and white caption text below your image
PDFs
PDF Merger
Merge multiple PDF files
Split PDF
Split a PDF into multiple files by page number
Rotate PDF
Rotate every page of a PDF in 90° increments
Add PDF Page Numbers
Add page numbers to the bottom of every page in a PDF
Watermark PDF
Stamp a diagonal text watermark across every page of a PDF
PDF to JPG
Convert every page of a PDF into a JPG image
Crop PDF
Crop every page of a PDF to a selection you draw
Protect PDF
Add a password to a PDF with AES-256 encryption
Extract PDF Pages
Extract specific pages from a PDF file
Remove PDF Password
Unlock a password-protected PDF file
Compress PDF
Shrink a large PDF's file size for easier sharing
Text & Data
Lookups
Utilities
AI Cost Calculator
Calculate how much it costs to use popular AI models based on token usage
Age Calculator
Calculate exact age in years, months, and days from a birth date
Todo List
Simple and beautiful todo list with local storage
Cron Checker
Enter a cron expression to see the next 10 execution times
QR Code Generator
Turn text or a URL into a scannable QR code
Password Generator
Generate strong, random passwords with custom rules
P2P File Share
Send any file straight from your browser to another one - no upload, no size limit
How each tool handles your files
Every row is checkable on the tool's own page. Where something does leave your device - the domain you look up, the connection details behind a peer-to-peer transfer - it says so.
| Tool | Accepts | Outputs | Runs in | Leaves your device | Limits |
|---|---|---|---|---|---|
| AI Cost Calculator | Token counts and a model you pick | Estimated cost per call and per million tokens | Your browser | Nothing - what you type stays in this tab | An estimate from listed prices, not a billing figure |
| AI Model ID Lookup | A model name or partial ID you type | The model ID, its aliases and per-token pricing, ready to copy | Your browser | Nothing - what you type stays in this tab - the dataset ships with the page | Covers the models in the bundled dataset, not every model ever |
| Age Calculator | A birth date | Exact age, total days lived and days to the next birthday | Your browser | Nothing - what you type stays in this tab | None |
| Domain Info | A domain name | Registration date, age, expiry and registrar | Our server | The domain name you search is sent to our server, which runs the lookup | Some registries publish less RDAP data than others |
| Blur Brush | PNG, JPG, WebP, GIF and other images your browser decodes | A blurred image you download or copy to the clipboard | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Rotate Image | PNG, JPG, WebP, GIF and other images your browser decodes | A rotated image you download or copy to the clipboard | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Resize Image | PNG, JPG, WebP, GIF and other images your browser decodes | A resized image you download or copy to the clipboard | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Crop Image | PNG, JPG, WebP, GIF and other images your browser decodes | A cropped image you download or copy to the clipboard | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| JSON Formatter | JSON or Python-dict style text you paste | Indented valid JSON you copy or save as formatted.json | Your browser | Nothing - what you type stays in this tab | No size or count cap; bounded by your device's memory |
| LinkedIn Image Editor | PNG, JPG, WebP, GIF and other images your browser decodes | A profile image with a ring and text overlay | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| PDF Merger | Two or more PDF files | A single merged.pdf, pages copied without re-encoding | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory; needs at least two files |
| Split PDF | One PDF file | One PDF per split, each named for the pages it holds | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Rotate PDF | One PDF file | The same PDF with the selected pages rotated | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Add PDF Page Numbers | One PDF file | The same PDF with a page number on every page | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Watermark PDF | One PDF file plus the watermark text | The same PDF with a diagonal watermark on every page | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| PDF to JPG | One PDF file | One JPG or PNG per page, at up to 600 DPI | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory; higher DPI costs more memory |
| Crop PDF | One PDF file | The same PDF with every page cropped | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Protect PDF | One PDF file plus the password to set | An AES-256 encrypted PDF named <file>-protected.pdf | Your browser | Nothing - the file never leaves your device, and neither does the password | No size or count cap; bounded by your device's memory |
| Extract PDF Pages | One PDF file | A new PDF holding only the pages you picked | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Remove PDF Password | One password-protected PDF plus its password | An unlocked PDF named <file>-unlocked.pdf | Your browser | Nothing - the file never leaves your device, and neither does the password | You must already know the password - this decrypts, it does not crack |
| Draw Arrow | PNG, JPG, WebP, GIF and other images your browser decodes | An annotated image you download or copy to the clipboard | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| CSV Preview | CSV, TSV, semicolon- or pipe-separated text you paste | A live table preview - no file is generated | Your browser | Nothing - what you type stays in this tab | No size or count cap; bounded by your device's memory |
| Code Snippet | Code you paste, in any of the supported languages | A styled PNG of the snippet | Your browser | Nothing - what you type stays in this tab | Very long snippets get unwieldy as a single image |
| Image Convert | PNG, JPG, WebP, GIF and other images your browser decodes | The same image as PNG, JPEG or WebP | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory; JPEG and WebP are lossy, PNG is lossless |
| HEIC to PNG | HEIC and HEIF images | A PNG named converted-image.png | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| PNG to JPG | PNG images | The same image as JPG | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory; JPG is lossy and drops PNG transparency |
| WebP to JPG | WebP images | The same image as JPG | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory; JPG is lossy and drops WebP transparency |
| Todo List | Tasks you type | A reorderable list saved in this browser | Your browser | Nothing - what you type stays in this tab | Saved per browser; clearing site data erases the list |
| Flip Image | PNG, JPG, WebP, GIF and other images your browser decodes, plus SVG | A flipped image; SVG in stays SVG out, still vector | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| AWS Edge Locations | A CloudFront edge location code | City, country and pricing region for that edge | Your browser | Nothing - what you type stays in this tab - the dataset ships with the page | Reflects the bundled aws-edge-locations dataset |
| Image Compressor | JPG, PNG and WebP images | A smaller image at the original dimensions | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Image Compare | Two images (PNG, JPG, WebP, GIF and other images your browser decodes) | One combined side-by-side comparison image | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Gradient Background | PNG, JPG, WebP, GIF and other images your browser decodes | A framed image on a gradient background | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory |
| Cron Checker | A cron expression | The next 10 run times in your local timezone | Your browser | Nothing - what you type stays in this tab | Shows the next 10 runs; uses your browser's timezone |
| QR Code Generator | Text, a URL or Wi-Fi credentials | A scannable QR code image | Your browser | Nothing - what you type stays in this tab | Very long inputs make denser, harder-to-scan codes |
| Password Generator | A length and the character sets you want | A random password, with its entropy shown in bits | Your browser | Nothing - what you type stays in this tab | None |
| Compress PDF | One PDF file | A smaller PDF at the quality or target size you chose | Your browser | Nothing - the file never leaves your device | No size or count cap; bounded by your device's memory; pages are re-rendered, so text becomes imagery |
| P2P File Share | Any file, of any type | The same file, delivered to the other browser | Your browser | A few KB of connection details, held for at most 10 minutes - never the file | No size limit, but both tabs stay open and some networks block direct connections |