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.
Pick colors from any image or screenshot with a magnifying loupe, and copy them as HEX, RGB, HSL, CMYK, and more. Sample a single pixel or the average of an area.
Make a photo collage from your images with templates, a grid, or a mosaic that keeps every photo whole. Drag photos to move and swap them, resize the frames, set spacing, borders, rounded corners, and background, and download a JPG, PNG, or WebP.
Edit a hex color code pair by pair: change the red, green, blue, and alpha digits or the opacity, and preview the result on a transparency grid. Works with 3-, 4-, 6-, and 8-digit codes, and copies the color as HEX, short HEX, rgba(), or Android ARGB. Runs in your browser.
Calculate the motion blur in your video from the frame rate and shutter. Enter the shutter as a speed or an angle, get both along with the exposure time and the 180° rule shutter, and watch an animated preview of how the motion will look. Runs in your browser.
See every working day, weekend, and public holiday of a year on one calendar. Pick a country and year to get the number of working days in each month and the whole year, with the weekend days of your choice. Runs in your browser.
See the image on your clipboard, such as a screenshot or a picture you copied. Paste it to view it with zoom, check its type, size in pixels, and file size, and save it as a file. Runs in your browser.
Make a video file smaller with a compression level or a target size in MB, and lower its resolution if you like. Saves an MP4 that plays everywhere, right in your browser.
Calculate your GPA from your course grades and credits on the 4.0 scale. Add courses with letter grades from A+ to F to get the semester GPA, and enter your current GPA and credits to see your new cumulative GPA. Runs in your browser.
Hash a password with scrypt, the memory-hard key derivation function. Set the salt, cost (N), block size (r), parallelization (p), and key length, and get the hash as a PHC string, hex, and Base64. Runs in your browser.
Make a PDF smaller, as a whole or only on the pages you pick. Large images are scaled down and saved as JPEG while text stays sharp and selectable. Compare the file sizes, then download the compressed PDF. Runs in your browser.
Extract the images from a PDF, such as photos, logos, charts, and scanned pages. See every image with its size, and download them one by one or all at once as a ZIP file. JPEG photos are saved as they are, without quality loss. Runs in your browser.
Create a compass image with a compass rose of 4, 8, 16, or 32 points, a degree scale, and a needle pointing at any heading. Pick a classic, modern, or minimal style and your own colors, then download it as PNG or SVG.
Convert Excel files to CSV and CSV to Excel. Turn any sheet of an XLSX, XLS, or ODS file into CSV with the values as Excel shows them, or paste CSV to download an XLSX file with numbers, dates, and TRUE/FALSE as real cells. Runs in your browser.
Record your voice or any audio from your microphone. Pause and resume with a live waveform, pick the microphone and quality, then trim the recording and download it as MP3, M4A, OGG, WAV, or FLAC. Runs in your browser, and nothing is uploaded.
Extract the text of a PDF by reading its pages as images with OCR. Works on scanned PDFs, and on PDFs whose text copies as garbled characters because of broken or unusual font encoding.
Make a trivia game board with categories and point values, like a TV quiz show. Add pictures to questions and answers, keep score for teams, play full screen, and save the game to a file to reuse or share.
Generate sample plain text files by paragraph count or exact file size, with your choice of line endings and encoding.
Generate sample CSV files with realistic fake names, emails, dates and amounts for testing imports.
Generate sample XLSX, XLS or ODS spreadsheets filled with realistic fake data across one or more sheets.
Generate sample DOCX documents with lorem ipsum pages, headings and a table, ready to open in Word.
Generate sample PNG, JPEG or WebP images at any size with a solid, gradient, checkerboard or noise background.
Generate sample WAV audio files with tones, sweeps, noise or silence at any length, sample rate and bit depth.
Generate sample ZIP archives with any number of files, folders and file sizes for testing uploads and extractors.
Generate a dummy file of an exact size with any name and extension, filled with zeros, random bytes or repeated text.