Convert images, edit documents, optimize files — powerful utilities that run entirely in your browser. Nothing uploaded. Nothing tracked.
Client-Side Kit (also searched as 'Client Side Kit' or 'Client-side Kit') is a collection of privacy-first browser tools.
Live preview, syntax highlighting, and local saving for distraction-free writing. Nothing uploaded.
Distraction-free word processor with auto-save and essential formatting tools. Runs locally on your device.
Accurately count and optimize tokens for Claude, GPT-4, and other models. Your prompts never leave your device.
High-performance batch conversion between image formats with quality control. 100% in-browser processing.
Convert HEIC photo files locally to JPG, PNG, or WebP formats. No server uploads required.
View, edit, and strip sensitive camera and location metadata from photos. Privacy protection made easy.
Extract text from images and documents locally in your browser using local AI. Your documents stay private.
Auto-crop and resize images for Instagram, TikTok, YouTube, and more. Runs entirely in your browser.
Frame-by-frame scrubbing, speed control, and zoom for animated GIFs. No uploads needed.
Generate and scan QR codes instantly directly in your browser. No data sent anywhere.
Convert time between cities and time zones. Search by city, AM/PM format. Runs locally on your device.
Generate cryptographically secure passwords and passphrases. Fully customizable, bulk generation, and 100% private.
Convert text to UPPERCASE, lowercase, Title Case, camelCase, and more. Instantly clean formatting and count words.
Encode text and images to Base64, decode Base64 strings. Perfect for embedding images in HTML/CSS.
Simple browser-based design tool for creating shapes, artboards, and text mockups. Your designs stay on your device.
From healthcare professionals to developers, see how local-first, privacy-first tools make a difference.
Got questions? We've got answers about privacy, security, and how our tools work.
"Client-side" means all processing happens directly in your web browser — on your device. Unlike traditional web tools that upload your files to remote servers, our tools never send your data anywhere. Your files stay on your computer the entire time.
Yes, 100%. Since everything runs locally in your browser, your files never leave your device. We don't have servers receiving your uploads, we don't store anything, and we have no way to access your content. True privacy by design.
No. Files are processed locally in your browser and are never uploaded to our servers. We do not store your content or keep copies.
Unlike server-based tools, we don't impose artificial file size limits. The only constraints are your device's available memory and processing power. Most modern devices can handle even large files with ease.
Yes — they're ideal for sensitive content. Whether you're handling medical records under HIPAA, confidential business documents under NDA, or personal files you'd rather keep private, our zero-upload approach means nothing ever touches our servers.
We keep tracking to an absolute minimum. We don't use third-party analytics services that profile users. Your usage of the tools themselves is completely private — no logging of what files you process or what actions you take.