PDF24 alternatives.
Compared honestly — including ours.
PDF24 is one of the few genuinely free PDF suites, and its Windows desktop app is a quiet gem. The web tools, though, still upload your files and carry ads. If you are looking for something lighter, faster, or more private, these seven alternatives cover the realistic options.
Short answer: Tool Pantry is the closest web equivalent — free, no ads, no sign-up, and files never leave your device. Keep PDF24's desktop app in mind for heavy Windows batch work.
The seven alternatives, briefly
People usually leave PDF24's web tools for three reasons: ads, uploads, or the wish for a cleaner interface. The desktop app solves privacy but locks you to Windows — for everyone else, a browser tool that processes locally is the sweet spot.
1. Tool Pantry — best for everyday, private file jobs
194 free tools that run entirely in your browser — files are processed on your device and never uploaded. Merge, split, rotate, sign, fill, and convert PDFs; compress and convert images, video, and audio; plus calculators and dev tools. No account, no daily caps, no watermarks. The trade-off: it focuses on everyday jobs rather than advanced PDF editing (no OCR or text re-writing), and huge files are still better handled by desktop software.
2. Smallpdf — best for a slick all-in-one PDF suite
A polished Swiss PDF suite with 20+ tools and one of the cleanest interfaces around. The free tier covers a couple of documents per day, and advanced features (editing, OCR, e-signatures) sit behind a subscription. Everything runs on their servers, so documents are uploaded.
3. iLovePDF — best for a broad free PDF toolkit
A very popular Spanish-built PDF suite covering merge, split, compress, convert, sign, and more. The free tier is generous but ad-supported, with size and usage limits that change over time. Upload-based.
4. Sejda — best for editing PDF text and forms
A clean, well-designed PDF editor with strong form-filling and text-editing features. Free web usage is capped (a few tasks per hour); heavier use needs a paid plan or the desktop app. Upload-based.
5. Zamzar — best for odd, rare file formats
A conversion veteran supporting 1,000+ file formats across documents, images, video, and audio. The free tier has file-size and daily limits, and results arrive by download or email. Upload-based.
6. CloudConvert — best for automation and API workflows
A powerful converter covering 200+ formats with a first-class API for automation. The free tier allows a limited number of conversions per day; heavy or programmatic use is paid. Upload-based.
7. Adobe Acrobat Online — best for professional-grade PDF editing
The reference implementation — full PDF editing, OCR, and e-signatures in the browser. Free basic tools require an Adobe account, and the genuinely powerful features come with a subscription. Upload-based.
At a glance
| Dimension | Tool Pantry | PDF24 | Smallpdf |
|---|---|---|---|
| Best for | Everyday jobs, fully local | Polished all-in-one suite | Broad free toolkit |
| Where files go | Never leave your device | Uploaded to servers | Uploaded to servers |
| Price | Free, no limits | Freemium with daily cap | Free, ad-supported |
| Account | Never | Optional | Optional |
| Daily limits | None | A few documents per day | Varies by tool |
Choose PDF24 if…
- You work on Windows and want free batch processing offline — the desktop app is the best free option there is.
- You need a very long tail of PDF utilities (compare, stamps, annotations).
- You do not mind ads in exchange for a free web suite.
Choose Tool Pantry if…
- You want the same everyday jobs without ads, uploads, or an install.
- You are on macOS, Linux, iOS, or Android — anywhere the desktop app does not exist.
- You want PDF tools plus image, video, and audio tools in one place.
Is PDF24 really free?
Yes — the web tools and the Windows desktop app are free and ad-supported. The trade-offs are uploads (web), ads, and Windows-only for the desktop version. Tool Pantry takes a different route: free, no ads, and nothing ever leaves your browser.
Do I have to upload my files to use these alternatives?
No — and that is the main difference in this list. Tool Pantry processes everything locally in your browser: files never leave your device. The other services in these lists are server-based, so their files are uploaded. For sensitive documents, prefer a local tool.
Are these alternatives really free?
Mixed. Tool Pantry is fully free with no limits. Most others are freemium: a free tier with caps (documents per day, file size, tasks per hour) plus a paid plan. The lists above state the realistic free limits for each.