Tools for the little things.
Compress, resize, and prepare your files in seconds. Free, and completely private.
Drop your photo here
or tap anywhere to choose a file
Get the file right.
Upload forms have file size limits. Email attachments have limits. Most tools make you wrestle with quality sliders. ToolKB lets you set the exact output size — and handles the compression for you.
Exam & Portal Forms
Strict upload portals for competitive exams and government applications often set hard limits between 20KB and 100KB.
Job Applications
HR portals and recruitment systems typically require a headshot and signature under a combined 150KB.
College Admissions
University admission portals frequently cap document uploads at 100KB or 200KB per file.
Visa & Travel Documents
Passport photo uploads for visa applications often specify both file size and exact pixel dimensions.
Compress to a specific size
Common Questions
Everything you need to know about preparing your files.