Free online tools that run in your browser
Compress, merge and split PDFs, upscale images with AI, trim and compress videos, take a personality test, read your Korean Saju and more: 18 free tools with no sign-up. Everything runs on your own device, so your files are never uploaded.
Compress PDF
Shrink PDF files right in your browser, without uploading them.
Merge PDF
Combine several PDF files into one, in the order you choose.
Split PDF & Extract Pages
Split a PDF by page ranges, or pull out just the pages you need.
Organize PDF Pages
Reorder, rotate and delete PDF pages with thumbnails.
Images to PDF
Turn photos and images (JPG, PNG) into a single PDF.
PDF to Images
Convert each PDF page into a JPG or PNG image.
Images
Video & audio
Trim Video
Keep only the part of a video you need and save it as MP4 or WEBM.
Compress Video
Reduce video file size by lowering resolution and bitrate.
Video to GIF
Turn a short part of a video into an animated GIF.
Video to MP3
Extract the audio from a video and save it as an MP3.
Extract Subtitles from Video
Extract the subtitles inside a video, or transcribe its speech into SRT or VTT subtitles.
Remove Subtitles from Video
Remove a video's subtitle tracks, or erase burned-in subtitle text by filling it with surrounding colors.
Utilities
Personality & fortune
Saju Calculator (Korean Four Pillars of Destiny)
Enter your birth date and time to see your Korean Saju (Four Pillars) chart, Five Elements, Ten Gods and decade luck, explained in English.
MBTI Personality Test
Answer 32 questions to find your type among the 16 personalities, with percentages and a full description.
Looking for Korean-specific calculators such as salary, tax and loan tools? Visit the Korean site.