Client Side Tools
6290 tools available
These tools run entirely in your browser. Everything you enter, from text and numbers to images, PDFs, and other files, is processed locally on your device and never uploaded to a server. No sign up or installation needed.
Play a five octave piano online with your mouse, touchscreen or computer keyboard. The keys follow Virtual Piano sheets, with piano, electric piano, organ and synth sounds and a sustain pedal.
Make 12 mm text labels and print them over Bluetooth on a Brother P-touch printer such as the PT-P300BT, right from Chrome or Edge, or download them as PNG.
Find out what fills up a folder on your computer. Pick or drop it to explore its subfolders and files in a treemap colored by file type, with a table sorted by size. Nothing is uploaded.
Make the XML file of Estonian payroll taxes (TSD) for e-MTA: salaries, fees and other payments with social tax, income tax, funded pension and unemployment insurance calculated, in EMTA's data-based XBRL GL format.
Check an Estonian TSD payment data file (XBRL GL XML) before you upload it to e-MTA: EMTA's file structure and business rules, tax calculations and limits, with the declaration's totals.
Turn JPG, PNG, WebP and other images into one PDF. Drag them into order, rotate them, pick the page size and margins, then download the PDF. Runs in your browser.
Split a PDF into several files: one per page, every few pages, or by page ranges such as 1-3, 4-8. See which file each page goes to on the thumbnails, then download the parts as a ZIP file.
Convert PDF pages to JPG images. Pick the pages, the resolution and the quality, then download one image or all of them in a ZIP file. Runs in your browser.
Find and remove blank pages from a PDF, including nearly white pages from scans. Review the flagged pages, adjust the selection and download the cleaned up file.
Add page numbers to a PDF. Pick the position, a format such as 1 / 12 or Page 1 of 12, the first number, the size and the pages to number, check the preview and download.
Add a text watermark such as CONFIDENTIAL or DRAFT to the pages of a PDF. Set the size, color, opacity and angle, place it in the center or tile it across the page, then download.
Remove the password and the printing, copying and editing restrictions from a PDF you can open. Enter the password and download a copy that opens without one. Runs in your browser.
Protect a PDF with a password using AES-256 encryption. Choose whether readers may print, copy or edit it, then download the locked file. Runs in your browser.
Sign a PDF by drawing your signature or uploading an image of it. Place it on any page, drag to move and resize it, then download the signed file. Runs in your browser.
Fill in the form fields of a PDF: text boxes, checkboxes, radio buttons and lists. See where each answer goes on the page preview, then download the filled PDF, flattened if you like.
View and edit the document properties of a PDF: title, author, subject, keywords, application, producer and dates. Change them or remove them all, then download the updated file.
Flatten a PDF so its form fields, comments, highlights and stamps become part of the page and can't be edited anymore. Pick what to flatten and download the result.
See how a glass prism splits white light into a rainbow spectrum. Change the prism material, apex angle and angle of incidence, and get the refractive index and deviation angle for red and violet light.
Convert length units.
Convert lengths in millimeters to centimeters instantly as you type.
Convert lengths in centimeters to millimeters instantly as you type.
Convert lengths in millimeters to meters instantly as you type.
Convert lengths in meters to millimeters instantly as you type.
Convert lengths in millimeters to kilometers instantly as you type.