MARK_Tools - Free PDF, Image & Network Tools (100% Offline)

MarkSnip Windows App

v1.1.1

Our desktop utility for offline OCR, stealth capturing, and reading QR codes directly from your screen.

Download Free

Merge PDF

Combine multiple PDF documents into a single file while preserving formatting.

PDF to Image

Extract and convert PDF pages into high-resolution JPG or PNG images.

Split PDF

Extract specific pages or divide a large PDF file into multiple smaller documents.

Image to PDF

Compile multiple JPG or PNG images into a single, organized PDF file.

Add Watermark

Apply customized text or transparent image stamps across your PDF pages.

Image Compressor

Reduce the file size of your JPEG, PNG, and WebP images without losing quality.

Image Converter

Convert images between PNG, JPG, WebP, and multi-resolution ICO formats.

QR Code Generator

Create static HD QR codes for URLs, Wi-Fi, and texts. Supports custom center logos.

YouTube Thumbnail Grabber

Fetch and download original high-resolution cover images directly from video URLs.

Color Palette Extractor

Extract dominant HEX and RGB colors automatically from uploaded images.

EXIF Metadata Remover

Protect your privacy by stripping GPS, camera info, and dates from your photos.

Social Media Resizer

Automatically crop your photos to fit exact dimensions for major social platforms.

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JSON Formatter

Validate, prettify, or minify JSON data securely in a local sandbox.

B64

Base64 Encoder/Decoder

Convert plain text or files into ASCII strings and decode them offline.

Password Generator

Create strong, cryptographically secure passwords using browser entropy.

Case & Word Counter

Instantly change text capitalization and analyze character/word limits.

SEO

SEO Text Analyzer

Audit content blocks for keyword density, n-grams, and reading scores.

Invoice Generator

Draft structured bills, calculate taxes, and download a professional PDF receipt.

Document Scanner

Fix perspectives and apply B&W scanning filters to your photos via WebAssembly.

NET

IP Subnet Calculator

Calculate IPv4/IPv6 CIDR routing blocks, subnet masks, and usable host limits.

DNS

DNS Resolver

Query global domain records (A, MX, TXT) securely via DNS-over-HTTPS.

HASH

Integrity Checker

Generate cryptographic checksums (MD5, SHA) to verify file authenticity.

Bandwidth Calculator

Estimate exact file transfer times factoring in realistic TCP network overhead.

CSS

CSS Gradient

Visually design complex linear or radial backgrounds and copy the code.

GIF

Video to GIF

Trim and transcode heavy MP4 videos into looping animated GIFs offline.

Universal Converter

Convert physical metrics, system values, byte sizes, and numeral bases.

Free utility tools.
Processed completely offline.