File Tools — Zip and Unzip Archives Safely Free
File tools pack files into ZIP archives and open archives safely, refusing dangerous paths and reporting encrypted members rather than guessing at them.
All File tools
- ZIP Creator
Pack up to 500 files into one ZIP archive, in your browser.
- ZIP Extractor
List, audit, and unpack ZIP archives safely in your browser.
Archives solve a simple irritation: many files that must travel as one. A designer bundling deliverables, a developer packaging logs, or a colleague zipping a folder of receipts for an accountant all reach for the same idea. This small category provides both halves of that routine. Pack hundreds of items into a ZIP, choose whether folders are preserved, and pick a compression level that trades size against speed. When an archive arrives, list its contents first, inspect names and sizes, refuse entries that try to escape the folder, reject encrypted or unsupported members honestly, then unpack only what you trust. Because building and reading archives happens locally, the documents inside are never uploaded, scanned or kept after the tab closes. Treat anything from an unknown sender as suspect until the listing looks sensible, and download results deliberately instead of opening them blindly. Freelancers, students and administrators rely on it whenever a folder must become a single attachment that survives email filters.
Formats and limits are described per tool; each tool page states the ones that tool actually accepts and enforces.
Privacy: Archives are built and read on your own device. The files you add or open are never uploaded, executed or written outside your browser, and dangerous paths are refused rather than unpacked.
Moving a folder as a single, trustworthy bundle
The task that brings people here is delivery: several files that must arrive together and survive an email filter. Gather the items, then pack the selection into one ZIP archive, deciding as you go whether folders should be preserved and how hard the archive should be squeezed. When something arrives, do not open it blind: first list the archive contents before unpacking, checking names, sizes and paths, then unpack only the entries you recognise.
The mistakes here are usually about trust and expectation. People forward an archive they never inspected, assume that squeezing harder always helps when it only slows the build, or expect a password-protected file to open without its key. Some forget that compressing already-compressed media gains almost nothing. A folder structure flattened during packing can also turn a tidy delivery into a puzzle, so confirm the layout before sending anything.
Choose by direction. Building a bundle wants the creator; examining or unpacking one wants the extractor. With only two tools in the category the decision is quick, and the real judgement is whether the archive deserves your trust at all. Anything from an unknown sender should be listed first and opened cautiously.
Archives earn their keep in specific circumstances: a designer shipping mockups, a photographer delivering a shoot, an accountant receiving receipts, or a developer attaching logs to a ticket. Compression is most valuable for text, source code, spreadsheets and word-processing documents, where repetition rewards the encoder handsomely; photographs, video and audio barely shrink because they are already compacted. Watch the entry count and the naming carefully, since duplicated or oddly punctuated filenames confuse some recipients and older extraction programs. Deliver results as a deliberate download rather than an automatic write, and treat any unexpected executable inside a bundle as a warning rather than a convenience. Name the bundle something a recipient recognises at a glance, note the contents in the covering message, and keep an unzipped master copy for yourself so a later revision never depends on reopening an old archive. Test the download yourself before sending it onward. Reuse one naming rule every time.
When this category is NOT the answer
If the bundle's contents are documents you intend to reorder or combine, packing them solves the wrong problem. Work on the documents with the PDF tools when the pages themselves change, not just their packaging.
Start here: a practical File workflow
- Gather the files you want to deliver and open ZIP Creator.
- Choose whether to keep the folder structure, set a compression level, and build the archive.
- Before sharing, audit anything received in ZIP Extractor, then unpack only the entries you trust.
Frequently asked questions about File tools
Are my files uploaded when I build an archive?
No. The ZIP is assembled in your browser from the files you select; nothing is transmitted to a server.
What stops a malicious archive?
Absolute paths and '..' traversal are refused, entry counts and expansion ratios are capped, and encrypted or unsupported archives are reported instead of guessed at.
Can you open a password-protected ZIP?
No. Encrypted archives are detected and rejected honestly; the tools never attempt to crack a password.
Does unpacking write files to my disk automatically?
No. Results are offered as a browser download only when you ask for them; nothing is written behind your back.