IT work in your browser — instantly, for free.
Before you open paid software, do it here.
PDF, Office, images, data, web, development and security. No install, no sign-up — do work you can verify, with before/after comparisons, right in your browser.
Drop a file to see what you can do
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Popular tools
View all toolsCompress PDF
Drop a PDF to cut its size. Only photos and scans are recompressed, so text and graphics stay crisp. Your PDF is processed on your device and never uploaded.
Merge PDF
Drop several PDFs, put them in order, and get one PDF. You can also choose which pages to take from each file. Nothing is uploaded — merging happens on your device.
Image Compressor
Drop images to shrink them in bulk while keeping them sharp. Convert to WebP or AVIF, resize, and compare before and after. Your images are never uploaded.
Image Converter
Choose the target format first, then drop images to convert them in bulk. Tune quality per format, use lossless WebP, set a background for transparency and name the output files — nothing is uploaded.
Excel Cleanup
Tick what to fix and clean up spaces, character widths, dates and numbers across a whole Excel or CSV file at once. Changed cells are highlighted, and you can save as Excel or CSV.
JSON Studio — Formatter & Validator
Paste JSON to format, minify or validate it instantly. Errors are shown with the exact line, column and cause, and comments or trailing commas can be auto-repaired. Your data never leaves your device.
Password Studio — Generator & Strength Checker
A strong 20-character password is ready when the page opens. Fine-tune symbols and excluded characters, switch to a memorable passphrase, or check a password you already use — all without sending anything off your device.
Webcam Test
Check your camera, its real resolution and frame rate in one click. If it doesn’t work, you’ll see the cause — permission, another app using it, not connected — and how to fix it. Nothing is recorded or uploaded.
Regex Tester
Type a pattern and matches light up in the test string instantly. Capture groups, replacement output and what each part of the pattern means are all on one screen — and patterns that would freeze your browser are stopped after one second.
QR & Barcode Studio
Build QR codes from templates for Wi-Fi, contacts, events and more, and barcodes such as EAN or Code 128 with automatic check digits. Export PNG or SVG, or batch-create one code per line.
Split PDF
Pick pages from thumbnails to extract them, or split a PDF by ranges, every N pages or into single pages. Your PDF is processed on your device and never uploaded.
Text Studio — Character Counter & Text Cleaner
Paste text to see characters, words, lines and bytes instantly, then clean it up in one click — change case, remove duplicate or blank lines, sort naturally, convert line breaks. Every action reports what changed and can be undone.
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Why LIBRA Works
Processing that never uploads your files
Tools marked “On-device” process files and input entirely inside your browser, so confidential documents and personal data never leave your device. Tools that do use a server say so — and how long data is kept — before you start.
Free, no sign-up, no usage caps
No degraded quality, watermarks or “three uses a day” limits designed to push you to a paid plan. Use what you need, when you need it.
Results you can verify
Compare before and after, see exactly what changed and how much was saved. JSON formatting, for example, never rounds large numbers and pinpoints errors by line and column.
Errors that tell you what to do next
Instead of a bare “failed”, you get the cause and the next step — and a way to fix it on the spot when possible.
Tools that work together
When one task is done, hand the result straight to the next tool — convert then compress without picking files again.
Covers the whole job
Common tasks across PDF, Office, images, data, web, development and security, organised by category — and chained together, so convert-then-compress needs no re-uploading.
Before you open paid software, do it here.
Free online tools for PDF, images, Excel and CSV data, and developers. No sign-up, no usage caps. Many tools process files on your device without uploading them.
View all tools