Free Online Tools — PDF, Image, JSON, Video · No Signup, No Upload

“No account. No paywall. No nonsense. Just a tool running in your browser.”

Text & Documents

Markdown editor with live preview and export

Mermaid diagram live editor with export

Markdown + Mermaid

Markdown with embedded Mermaid diagrams

Compare text side-by-side with highlighted changes

Generate placeholder text for designs and layouts

PDF

Merge, split, reorder, rotate, and sign PDFs

Permanently remove sensitive information from PDFs

Combine multiple images into a single PDF document

Calculators

Notepad Calculator

Write math line by line with instant inline results

Images & Media

Compress, resize, crop, rotate, adjust, and filter images

Trim, resize, compress, convert, and edit videos

Screenshot Beautifier

Add backgrounds, shadows, and frames to screenshots

Generate and read QR codes

Turn code snippets into beautiful shareable images

Favicon Generator

Generate favicons in all sizes from one image

Text to Handwriting

Convert typed text into handwritten-style images

Developer Tools

Format, validate, and explore JSON with tree view

Encode and decode JSON Web Tokens

Test regular expressions with live match highlighting

Encode and decode Base64 text and files

Generate SHA-256, SHA-1, and MD5 hashes

File Checksum Verifier

Verify file integrity with multiple hash algorithms

Generate random UUIDs (v4)

Password Generator

Generate secure random passwords

Design

Pick, convert, generate palettes, and check contrast

Diagram Builder

Visual flowchart editor with Mermaid import/export

Privacy

Metadata Cleaner

Inspect and strip hidden metadata from files

Productivity

Focus timer with work/break cycles and streak tracking

Visual task board with built-in per-card timers