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PDF Split & Merge
Merge multiple PDF files or extract selective page ranges client-side using pure JavaScript.
100% Client-Side • In-Memory Architecture
Fast, Private Online Tools That Never Touch a Server.
Say goodbye to suspicious cloud uploads and file size quotas. All processing, PDF manipulation, sound synthesis, and data conversions execute directly inside your browser's memory sandbox.
0 B
Uploaded to Cloud
100%
Private & Offline Ready
< 15ms
Instant Execution
Document & File Utilities
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Image Compressor & Resizer
Reduce file size and re-scale JPEG, PNG, and WebP images locally with live side-by-side quality preview.
Data & Developer Tools
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CSV to JSON & Table Converter
Bi-directional CSV ↔ JSON parser with searchable interactive data preview and custom delimiters.
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Text Diff & Document Comparator
Compare two text snippets or documents with granular line-by-line and word-by-word visual highlight diffs.
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Messy Text & Copy Cleaner
Strip HTML tags, clean up erratic line breaks, remove duplicate lines, and normalize whitespace instantly.
Business & Freelance
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Instant Invoice & Receipt Builder
Create professional, customizable PDF invoices with automatic tax calculation and zero cloud sign-up.
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Custom QR Code & vCard Generator
Generate high-resolution vector SVG/PNG QR codes for URLs, WiFi passwords, and vCard digital contact cards.
Productivity & Media
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Multi-Timezone Overlap Planner
Visualize working hours across remote teams worldwide with a continuous interactive 24-hour overlap matrix.
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In-Browser Screen & Mic Recorder
Capture desktop screen recordings, webcam, and microphone audio directly to WebM/MP4 without extensions.
No Upload Needed
Focus Pomodoro & Ambient Noise Synthesizer
Procedurally synthesized white noise, pink noise, rain sounds, and custom Pomodoro intervals for deep work.