# DocFuse

> DocFuse is a free, privacy-first collection of browser-based PDF tools, document converters, and developer utilities. Most tools run entirely client-side using JavaScript and WebAssembly with no file uploads, no account requirements, no watermarks, and no paywalls. Built as a Techworks project at https://docfuse.net.

## Overview

DocFuse provides 30+ free online tools across four categories: PDF tools, document tools, developer utilities, and archive tools. The core design principle is client-first processing, meaning files stay on the user's device and are never uploaded to external servers for the majority of tools. The only exception is Office-to-PDF conversion, which uses server-side LibreOffice processing with immediate file deletion after conversion.

There are no accounts, no signups, no premium tiers, and no degraded free output. All tools produce full-quality results with no artificial limitations.

DocFuse was built by an independent developer frustrated with existing document tools that require subscriptions, add watermarks, or upload files to unknown servers. The project prioritizes simplicity, privacy, and reliability over monetization.

## Privacy and Security

Files processed by client-side tools never leave the user's device. Processing happens entirely in the browser using JavaScript and WebAssembly. No data is transmitted to any server.

For the small number of server-side tools (Office-to-PDF conversion), files are uploaded temporarily, processed with LibreOffice, and immediately deleted after the converted file is downloaded. Files are not logged, inspected, or stored permanently.

DocFuse does not sell or share user data, does not train AI models on user files, does not store files permanently, and only tracks basic analytics such as page views and tool usage.

For maximum security with sensitive documents (financial, legal, medical), users can load any client-side tool and then disconnect from the internet before processing. Client-side tools function fully offline once loaded.

## PDF Tools

### PDF Composer
URL: https://docfuse.net/pdf-tools
A unified workspace for merging multiple PDFs, splitting documents into individual pages or ranges, rotating pages, and reordering content. All processing happens in the browser with no file size limitations imposed by the server. Supports drag-and-drop input and batch operations.

### Convert to PDF
URL: https://docfuse.net/convert-to-pdf
Converts images and Office documents into PDF format. Image conversion runs client-side. Office document conversion uses server-side LibreOffice with immediate file deletion.

### Image to PDF
URL: https://docfuse.net/image-to-pdf
Converts common image formats (JPEG, PNG, BMP, TIFF, WebP) into PDF documents. Users can arrange multiple images into a single PDF. Runs entirely client-side with no file size limits.

### Office to PDF
URL: https://docfuse.net/office-to-pdf
Converts Microsoft Word (.docx, .doc), Excel (.xlsx, .xls), and PowerPoint (.pptx, .ppt) files to PDF using server-side LibreOffice. Files are uploaded for conversion and immediately deleted after download.

### PDF Unlock
URL: https://docfuse.net/pdf-unlock
Removes password restrictions from PDFs or exports password hashes for offline recovery. Processes files locally in the browser.

### OCR Workspace
URL: https://docfuse.net/ocr
Extracts text from scanned documents and images using Tesseract.js, producing searchable PDF copies. Supports multiple languages. Runs client-side in the browser, so scanned documents are never uploaded to any server.

### Sign PDF
URL: https://docfuse.net/sign
Allows users to draw, type, or upload signature images and position them on PDF pages. Signing happens entirely in the browser. Signatures can be saved locally for reuse.

### PDF Visual Diff
URL: https://docfuse.net/pdf-diff
Compares two PDF documents side by side by rendering each page as an image and performing pixel-by-pixel comparison. Highlights additions, deletions, and changes with color overlays. Includes thumbnail navigation and blend modes for detailed inspection.

### PDF Translate
URL: https://docfuse.net/pdf-translate
Translates PDF document content between languages while preserving formatting.

## Document Tools

### CSV Utilities
URL: https://docfuse.net/csv-utils
Converts CSV files into JSON or TSV format and validates column structure. Runs entirely in the browser with instant results.

### CSV to XLS
URL: https://docfuse.net/csv-to-xls
Transforms CSV exports into Excel workbooks (.xlsx) locally in the browser. No file upload required.

### Table Extractor
URL: https://docfuse.net/table-extract
Detects tabular data within PDF documents and exports it as CSV or copies it to the clipboard for pasting into spreadsheet applications. Useful for extracting data from invoices, reports, and forms.

### Doc Cleaner
URL: https://docfuse.net/doc-cleaner
Strips Word and Google Docs markup down to clean Markdown. Removes hidden formatting, tracked changes, and embedded styles to produce clean, portable text.

### Document Outline
URL: https://docfuse.net/document-outline
Generates document structure and table of contents from uploaded documents.

### QR Generator
URL: https://docfuse.net/qr-code
Creates customizable QR codes for URLs, text, email addresses, phone numbers, Wi-Fi credentials, and other data types. Supports color customization and download in multiple formats.

## Developer Tools

### JSON Formatter
URL: https://docfuse.net/dev/json
Formats minified JSON for readability, validates JSON structure, identifies syntax errors, and minifies formatted JSON. All processing happens in the browser with no data sent to external servers.

### Base64 Encode/Decode
URL: https://docfuse.net/dev/base64
Encodes text to Base64 and decodes Base64 strings back to plaintext. Handles text and file inputs. Runs client-side.

### URL Encoder
URL: https://docfuse.net/dev/url-encode
Encodes and decodes URL components, handling special characters and percent-encoding. Useful for debugging query strings and building API requests.

### Hash Generator
URL: https://docfuse.net/dev/hash
Generates cryptographic hashes including MD5, SHA-1, SHA-256, SHA-384, and SHA-512. Accepts text or file input. Runs entirely in the browser using the Web Crypto API.

### RegEx Tester
URL: https://docfuse.net/dev/regex
Tests and debugs regular expressions with live matching, capture group highlighting, and flag configuration. Supports JavaScript regex syntax.

### Diff Compare
URL: https://docfuse.net/dev/diff
Produces unified diff output for comparing text and code files. Shows additions, deletions, and modifications with line numbers. Supports copy and download of diff output.

### JWT Decoder
URL: https://docfuse.net/dev/jwt
Decodes and inspects JSON Web Tokens, displaying header, payload, and signature information. Runs entirely in the browser with no network requests, making it safe for sensitive tokens that should not be transmitted to external services.

### Cron Builder
URL: https://docfuse.net/dev/cron
Builds cron schedule expressions through a visual interface. Provides plain-English translation of cron syntax and displays upcoming execution times. Can also reverse-engineer existing cron expressions.

### Color Converter
URL: https://docfuse.net/dev/color
Converts between color formats including HEX, RGB, HSL, CMYK, and other representations. Includes a visual color picker.

### SQL Formatter
URL: https://docfuse.net/dev/sql
Formats and beautifies SQL queries with proper indentation and keyword highlighting. Supports multiple SQL dialects.

### XLSX Converter
URL: https://docfuse.net/dev/xlsx-convert
Converts Excel (.xlsx) files to CSV or JSON format in the browser. Handles multiple sheets and preserves data types.

### Mermaid Editor
URL: https://docfuse.net/dev/mermaid
Live preview editor for Mermaid diagram syntax. Supports flowcharts, sequence diagrams, Gantt charts, ER diagrams, and other Mermaid diagram types. Includes templates and snippet insertion. Exports diagrams as SVG or PNG.

### Code Linter
URL: https://docfuse.net/code-linter
Lints and validates code snippets for common syntax errors and style issues.

## Archive Tools

### Archive Extractor
URL: https://docfuse.net/archive/extract
Inspects and unpacks ZIP, TAR, TAR.GZ, 7Z, and RAR archive files locally in the browser. Includes safety checks for zip bombs and malformed archives. No files are uploaded to any server.

### Archive Builder
URL: https://docfuse.net/archive/build
Bundles selected files into ZIP, TAR, or 7Z archives directly in the browser. Supports optional password protection. All processing is client-side.

## Open Source Tools Directory

URL: https://docfuse.net/foss-tools
A curated directory of free and open-source software alternatives for document processing, PDF utilities, image editing, data tools, and developer workflows. Includes tools like LibreOffice, Pandoc, GIMP, Inkscape, ImageMagick, PDFtk, Ghostscript, Tabula, and approximately 30 other open-source applications organized across 16 categories.

## Frequently Asked Questions

Q: What is DocFuse?
A: DocFuse is a free collection of PDF editing tools, document converters, and developer utilities that run primarily in your browser. No accounts, no watermarks, no paywalls.

Q: Do my files get uploaded to a server?
A: Most tools process files entirely client-side using JavaScript and WebAssembly. The only exception is Office-to-PDF conversion, which uses server-side LibreOffice. Server-processed files are immediately discarded after conversion.

Q: Is there a catch? Watermarks, forced signups, paywalls?
A: No. There are no hidden costs, no watermarks, no account requirements, and no paywalls. All tools produce full-quality output for free.

Q: Who uses DocFuse?
A: Students, freelancers, small business owners, developers, accountants, and analysts use DocFuse for document tasks ranging from PDF merging to JWT inspection and data extraction.

Q: Is it safe for sensitive documents?
A: Client-side tools process files entirely in your browser with no network requests. For maximum security, you can load a tool, disconnect from the internet, and process documents fully offline.

Q: How does Office-to-PDF conversion work?
A: Files are uploaded to the server, converted using LibreOffice, and immediately deleted after the converted file is downloaded. Files are not logged, inspected, or stored.

Q: What archive formats are supported?
A: The extractor opens ZIP, TAR, TAR.GZ, 7Z, and RAR files. The builder creates ZIP, TAR, and 7Z archives. Both tools run client-side.

Q: How do I report a bug or request a feature?
A: Email support@docfuse.net with a description of the issue or feature request, including your browser and OS details.

## All Pages

- [Home](https://docfuse.net/)
- [About](https://docfuse.net/about)
- [Security & Privacy](https://docfuse.net/security-privacy)
- [FAQ](https://docfuse.net/faq)
- [Open Source Tools](https://docfuse.net/foss-tools)
- [PDF Composer](https://docfuse.net/pdf-tools)
- [Convert to PDF](https://docfuse.net/convert-to-pdf)
- [Image to PDF](https://docfuse.net/image-to-pdf)
- [Office to PDF](https://docfuse.net/office-to-pdf)
- [PDF Unlock](https://docfuse.net/pdf-unlock)
- [OCR Workspace](https://docfuse.net/ocr)
- [Sign PDF](https://docfuse.net/sign)
- [PDF Visual Diff](https://docfuse.net/pdf-diff)
- [PDF Translate](https://docfuse.net/pdf-translate)
- [CSV Utilities](https://docfuse.net/csv-utils)
- [CSV to XLS](https://docfuse.net/csv-to-xls)
- [Table Extractor](https://docfuse.net/table-extract)
- [Doc Cleaner](https://docfuse.net/doc-cleaner)
- [Document Outline](https://docfuse.net/document-outline)
- [QR Generator](https://docfuse.net/qr-code)
- [JSON Formatter](https://docfuse.net/dev/json)
- [Base64 Encode/Decode](https://docfuse.net/dev/base64)
- [URL Encoder](https://docfuse.net/dev/url-encode)
- [Hash Generator](https://docfuse.net/dev/hash)
- [RegEx Tester](https://docfuse.net/dev/regex)
- [Diff Compare](https://docfuse.net/dev/diff)
- [JWT Decoder](https://docfuse.net/dev/jwt)
- [Cron Builder](https://docfuse.net/dev/cron)
- [Color Converter](https://docfuse.net/dev/color)
- [SQL Formatter](https://docfuse.net/dev/sql)
- [XLSX Converter](https://docfuse.net/dev/xlsx-convert)
- [Mermaid Editor](https://docfuse.net/dev/mermaid)
- [Code Linter](https://docfuse.net/code-linter)
- [Archive Extractor](https://docfuse.net/archive/extract)
- [Archive Builder](https://docfuse.net/archive/build)

## Contact

- Support: support@docfuse.net
- Website: https://docfuse.net
- Parent project: RainCity Techworks (https://rain-city.tech)
- Related sites: TechKit.net (https://techkit.net), DNSRecon.io (https://dnsrecon.io)