Document Tools
HTML to PDF Converter
Transform web content into polished PDFs in seconds with full control over layout.
- A4 and Letter presets
- Portrait or landscape output
- Custom margin controls
Privacy-first toolkit
Convert, compress, and transform files without leaving your browser
Work faster with instant PDF, image, and data converters that never upload your files. Each utility is optimised for accuracy, speed, and GDPR-friendly privacy by design.
Browse all toolsPrivacy FirstYour files never leave your device
Zero upload architecture
Everything processes locally for maximum privacy and compliance.
Offline friendly
Use the tools even when you're travelling or without a VPN.
Made for productivity
Hand-tuned defaults and clean UI get you to the result in seconds.
Most-used tools
Popular converters picked by thousands of privacy-conscious teams.
Document Tools
Merge PDF Files
Drag-and-drop multiple PDFs to merge them into a single document instantly.
- Interactive file ordering
- Instant merge previews
- Local-only processing
Image Tools
Image Converter
Load any image and export to modern formats with responsive previews and metadata.
- Side-by-side preview
- Quality and resize controls
- Supports AVIF, WebP, PNG, JPG
Document Tools
Compress PDF
Reduce PDF size by rasterising pages with adjustable quality in your browser.
- Quality slider with live stats
- Before/after size comparison
- Works entirely offline
Data Tools
JSON ⇄ CSV Converter
Use PapaParse-powered conversions to move data between JSON and CSV flawlessly.
- PapaParse powered accuracy
- Custom delimiters
- Pretty-print JSON output
Data Tools
Base64 Encoder & Decoder
Convert text or files to Base64 and back with line-break and download options.
- Line break control
- UTF-8 and Latin-1 output
- File and text modes
Why teams rely on ConvertCompressTool
Most converter sites push your uploads through opaque infrastructure. We publish client-side utilities so you can meet internal security requirements while still delivering polished outputs. Every workflow ships with sensible defaults, validation, and contextual tips-so you can trust the result even when you are working under tight deadlines.
Because each tool shares the same design language, training colleagues takes minutes instead of hours. Product designers, compliance managers, and analysts move between PDF, image, and data conversions without relearning how the interface behaves.
- Step-by-step guidance: Inline hints, previews, and warnings tell you what is happening before you commit to a download.
- Evidence for audits: Our privacy policy documents how local processing works so stakeholders understand the data flow.
- Predictable releases: When a converter changes, the changelog is reflected in the interface and on the contact page so you can request the previous behaviour if needed.
Workflows our users ship every day
Design handoffs without vendor lock-in
Export HTML prototypes as review-ready PDFs and standardise screenshots before they ever leave your machine using the HTML to PDF and image converter tools.
Client-ready document packs
Merge statements, compress evidence files, and share downloads in seconds with PDF merge and PDF compress- ideal for legal and finance teams that cannot email large attachments.
Data handoff for engineering teams
Convert API payloads, clean spreadsheets, and prep Base64 assets locally with the JSON & CSV and Base64 utilities. Keep sensitive sample data in-house during QA.
Document Tools
Work with PDFs and documents entirely offline - merge, compress, and convert quickly.
Document Tools
HTML to PDF Converter
Transform web content into polished PDFs in seconds with full control over layout.
- A4 and Letter presets
- Portrait or landscape output
- Custom margin controls
Document Tools
Merge PDF Files
Drag-and-drop multiple PDFs to merge them into a single document instantly.
- Interactive file ordering
- Instant merge previews
- Local-only processing
Document Tools
Compress PDF
Reduce PDF size by rasterising pages with adjustable quality in your browser.
- Quality slider with live stats
- Before/after size comparison
- Works entirely offline
Document Tools
PDF to Word
Convert PDFs to Word documents by embedding high-resolution page snapshots inside DOCX.
- High quality page renders
- Keeps layout intact
- Offline friendly
Document Tools
PDF Merge & Split
Split PDFs by custom ranges, extract selected pages, or merge docs without leaving the browser.
- Custom page range extraction
- Selective merge builder
- Instant previews
Image Tools
Optimise and transform images with tuned quality settings and live previews.
Image Tools
Image Converter
Load any image and export to modern formats with responsive previews and metadata.
- Side-by-side preview
- Quality and resize controls
- Supports AVIF, WebP, PNG, JPG
Image Tools
Image Compression
Compress images in batches using tuned quality settings and automatic resizing if desired.
- Target size or quality
- Batch processing support
- Preview with diff stats
Data Tools
Reshape data for APIs, exports, and integrations with accurate conversions.
Data Tools
JSON ⇄ CSV Converter
Use PapaParse-powered conversions to move data between JSON and CSV flawlessly.
- PapaParse powered accuracy
- Custom delimiters
- Pretty-print JSON output
Data Tools
Base64 Encoder & Decoder
Convert text or files to Base64 and back with line-break and download options.
- Line break control
- UTF-8 and Latin-1 output
- File and text modes
Transparency you can verify
ConvertCompressTool is built by practitioners who spend their days moving regulated information between tools. We document how we operate so you have something concrete to share with procurement, legal, or your own clients.
Documented safeguards
Our privacy policy explains how each utility stays local-first, how cookies are handled, and what to tell risk teams during review.
Clear usage policies
The terms of service spell out acceptable use, commercial rights, and attribution guidance so you are never left guessing.
Reach a human quickly
Need a signed vendor questionnaire or a new feature? The contact channel connects you directly with the engineers who maintain the tools - no AI auto-responses, just people who can help.
Built for people who care about privacy
Developers, designers, compliance teams, and consultants rely on ConvertCompressTool to keep sensitive artefacts on their own machines. You get the convenience of purpose-built utilities with the peace of mind of offline workflows.
- New tools and improvements ship monthly based on community feedback.
- No telemetry, trackers, or vendor lock-in - just fast utilities that respect your data.
- Works on flights, on client networks, or anywhere an internet connection is unreliable.
FAQ
Can I use the tools for commercial projects?
Yes. Everything here is free for personal and commercial work. Credit is appreciated but not required.
Do you keep a copy of my documents?
No copies are kept. Conversions happen in your browser's memory and vanish as soon as you refresh or close the tab.
How can I request a new tool?
Send a note via the contact page with your use-case. The roadmap is community driven, and we prioritise offline-friendly workflows.
Stay in the loop
We add new utilities regularly. Join the newsletter to hear about new releases, tips, and privacy-first workflows.
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