Every tool here runs on your device. Open what you need, check the result, and download it without handing the raw content to Toolumina.
Popular tools
View all toolsPassword Generator
Make a strong password, trim confusing characters, and copy it in one click.
liveImage to PDF
Turn a batch of images into one PDF and keep the pages in the order you want.
liveMerge PDF
Join several PDFs into one file after reordering them or trimming page ranges.
liveUUID / GUID Generator
Generate fresh UUIDs in bulk when you need safe placeholder IDs.
liveText Diff Checker
Paste two versions of text and see exactly what changed.
liveCompress PDF
Try a smaller PDF before email, upload forms, or ticket attachments.
liveSplit PDF
Break a large PDF into smaller files or pull out just the pages you need.
livePDF to JPG
Export PDF pages as JPGs for previews, chat threads, or lightweight sharing.
liveColor Picker and Converter
Pick a color, convert the value, and keep a small working palette handy.
liveQR Code Generator
Create a clean QR code for a link, note, or campaign URL.
liveJSON Formatter
Clean up pasted JSON and catch syntax problems before you move on.
liveTool workflows
A few practical chains for document cleanup, image prep, SEO checks, and small admin jobs.
Turn photos, scans, and separate PDFs into one clean, smaller document that is ready to send or archive.
Web Image Publishing5 stepsPrepare phone photos, product images, and screenshots for fast web pages and clean social previews.
SEO Content Launch5 stepsMove from draft copy to a publishable URL, search snippet, campaign link, and QR code.
API JSON Debug5 stepsClean, compare, validate, and transform API data while keeping payloads local.
Explore by category
Start with the kind of job you need to finish, then pick the tool that fits.
Marketing
Campaign URL builders, search preview checks, receipt tools, and other lightweight utilities for practical marketing workflows.
Text
Clean up drafts, compare revisions, pull out useful bits, and sanity-check copy before it goes anywhere else.
Image
Crop, resize, compress, and tidy images for docs, listings, support replies, and social posts.
Image Cropper
Crop screenshots and photos quickly, then export the version that fits.
Color Picker and Converter
Pick a color, convert the value, and keep a small working palette handy.
Image Compressor
Shrink image files for uploads while keeping an eye on visible quality.
Image Resizer
Resize an image to the exact dimensions a form, card, or post needs.
Merge, split, shrink, and convert PDFs when you need a cleaner file to send, save, or review.
Image to PDF
Turn a batch of images into one PDF and keep the pages in the order you want.
Merge PDF
Join several PDFs into one file after reordering them or trimming page ranges.
Compress PDF
Try a smaller PDF before email, upload forms, or ticket attachments.
Split PDF
Break a large PDF into smaller files or pull out just the pages you need.
Generator
Make passwords, UUIDs, QR codes, sample text, and other small bits you need on the fly.
Developer
JSON, timestamp, regex, keyboard, mouse, data conversion, and other small utilities for builders and technical teams.
Security
Quick helpers for hashes, JWTs, certificates, encoders, and defensive security review work.
URL Defang / Refang Tool
Make indicators safer to share, or turn defanged text back when needed.
IOC Extractor
Pull URLs, domains, IPs, and hashes out of noisy security text.
SSL Certificate Decoder
Paste a PEM certificate and read the subject, issuer, dates, and SANs.
CSR Decoder
Check a CSR before issuance so the CN, SANs, and key details are right.
Latest tools
29 tools trackedPassword Generator
Make a strong password, trim confusing characters, and copy it in one click.
Image to PDF
Turn a batch of images into one PDF and keep the pages in the order you want.
Image Cropper
Crop screenshots and photos quickly, then export the version that fits.
Color Picker and Converter
Pick a color, convert the value, and keep a small working palette handy.
Merge PDF
Join several PDFs into one file after reordering them or trimming page ranges.
Text Diff Checker
Paste two versions of text and see exactly what changed.
UUID / GUID Generator
Generate fresh UUIDs in bulk when you need safe placeholder IDs.
Compress PDF
Try a smaller PDF before email, upload forms, or ticket attachments.