Free online tools that never upload your files
32+ tools for PDFs, images, calculators, development and text. Everything runs privately in your browser — no uploads, no signup, no limits.
🔒 100% client-side processing — your files never leave your device
PDF Tools
9 toolsMerge, split, compress and convert PDF files — right in your browser.
Merge PDF Combine multiple PDF files into one document, free and instantly. Files are merged in your browser — no uploads, no signup, no watermarks. Split PDF Split a PDF into separate files or extract specific pages. Free, no signup, and processing happens entirely in your browser. Compress PDF Shrink large PDF files without losing readability. Choose compression strength and download instantly — files never leave your browser. PDF to JPG Convert every page of a PDF to high-quality JPG or PNG images. Free, instant, and processed entirely in your browser — no uploads. PDF to Word Convert a PDF into an editable Word (DOCX) document. Text is extracted and rebuilt in your browser — no uploads, free and unlimited. JPG to PDF Convert JPG, PNG and WebP images into a single PDF. Set page size and margins, reorder images, download instantly — 100% in your browser. Rotate PDF Rotate all pages of a PDF by 90, 180 or 270 degrees, or rotate individual pages. Free, instant, and fully browser-based. Organize PDF Pages Visually arrange a PDF: delete pages you don't need and drag pages into a new order. Free, private, and processed in your browser. Extract PDF Text Pull all text out of a PDF and copy or download it as .txt. Fast, free, and processed entirely in your browser — no uploads.
Image Tools
7 toolsCompress, convert, resize and edit images without uploading them anywhere.
Image Compressor Shrink JPG, PNG and WebP images up to 90% smaller with a target file size or quality slider. Free, no upload, batch supported. Image Converter Convert between PNG, JPG and WebP formats instantly. Batch conversion, quality control, and zero uploads — all in your browser. Image Resizer Resize images by pixels or percentage with aspect-ratio lock. Batch resize, format choice, and zero uploads — runs in your browser. Image Cropper Crop images with a visual editor: drag the frame, use aspect ratios like 1:1 or 16:9, and download. Free and fully browser-based. Image to Base64 Encode any image to a Base64 data URI for CSS or HTML. Instant preview, one-click copy, zero uploads — works entirely in your browser. Watermark Image Add a text watermark to photos in bulk: pick font size, opacity, color and position. Free, batch ready, and never uploaded. HEIC to JPG Convert HEIC and HEIF photos to JPG or PNG right in your browser. Batch conversion, quality control, zero uploads — free, fast and unlimited.
Developer Tools
9 toolsFormatters, encoders and generators for everyday development work.
JSON Formatter Format, validate and minify JSON with syntax highlighting and clear error messages. Free, instant, and fully client-side. QR Code Generator Create QR codes for URLs, text, WiFi, email or phone. Adjust size and colors, download as PNG or SVG — free, no watermark. Base64 Encoder / Decoder Encode text to Base64 or decode Base64 back to text. UTF-8 safe, instant, with one-click copy — fully client-side. URL Encoder / Decoder Encode or decode URLs and query strings with proper percent-encoding. Handles spaces, symbols and Unicode — instant and client-side. Hash Generator Generate SHA-256, SHA-384, SHA-512, SHA-1 and MD5 hashes from text instantly. Compare checksums and verify integrity — client-side only. UUID Generator Generate one or hundreds of cryptographically random UUID v4 identifiers instantly. Bulk mode, one-click copy — fully client-side. Password Generator Create strong random passwords with one click. Choose length and character sets, see the strength estimate, copy instantly — generated locally. Timestamp Converter Convert Unix timestamps to human-readable dates and back. Live current-epoch clock, UTC and local time, milliseconds support — fully client-side. CSV ⇄ JSON Converter Convert CSV to JSON or JSON to CSV instantly. Handles quoted fields, custom delimiters and header rows — paste, convert, copy. Fully client-side.
Text Tools
4 toolsCounters, converters and utilities for working with plain text.
Word Counter Count words, characters, sentences, paragraphs and reading time in real time. Free, instant keyword density — fully client-side. Case Converter Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more. One click, instant, client-side. Text Diff Compare two blocks of text and highlight every addition, deletion and change. Line-level diff with clear colors — fully client-side. Lorem Ipsum Generator Generate lorem ipsum placeholder text by paragraphs, sentences or words. Classic Latin filler for designs and mockups — client-side.
Calculators & Converters
3 toolsEveryday calculators and unit converters — instant answers, nothing tracked.
Age Calculator Calculate your exact age in years, months, days — even hours, minutes and seconds. Next-birthday countdown included. Free, instant, private. Percentage Calculator Three percentage calculators in one: X% of a number, one number as a percent of another, and percentage increase or decrease. Instant, client-side. Unit Converter Convert between metric and imperial units: length, weight, temperature, speed, area, volume, data size and time. Instant and precise — in your browser.
Why ToolsKit?
Truly private
Other sites upload your files to their servers. Here, every tool runs locally in your browser — your documents and photos never leave your device.
No limits, no signup
No accounts, no daily caps, no watermarks. Open a tool, use it, done. Works offline once loaded.
Free forever
Every tool is completely free. No hidden trials, no "pro" paywalls — just useful tools that respect you.