The 10 Best Portable File Boxes

The Oxford Pendaflex is made of thick, durable plastic and comes with three hanging folders, tabs, and extra paper inserts. It also has a built-in handle for easy carrying, but some users find that it's hard to load, as the lid will not stay open on its own.

The Iris Desktop is a simple, minimalist option that comes in three sizes and has two sets of handles so it can be carried from different angles. It's perfect for taking back and forth from work to home, but it doesn't lock, so it may not be suited for confidential files.

Featuring a strong and sturdy handle and a clear lid that also stores office supplies, the Sterilite Black is easy to carry and holds up well to frequent travel. It does not have a built-in lock, but it has a hole that will accommodate a small padlock for security.

If you don't have a ton of papers to organize, the Amazon Basics Letter is a great budget-friendly option. With 13 expanding pockets, it holds up to 900 pages and is extremely compact when closed, so it's easy to tuck under your arm on your way out the door.

The Bankers Box Heavy Duty works with any letter-sized files or folders, and its modular design makes it easy to stack. It also features a comfortable handle and a hidden compartment within the lid for storing pens, paperclips, and other small office supplies.

With the SummerZee Expanding you get 24 rainbow-colored pockets that make it easy to organize your paperwork. The plastic is rigid enough to stand up on its own, but it's a little on the flimsy side compared to other options

For sensitive documents, the Vaultz Legal provides an extra level of protection with its double combination locks. It features a chrome label holder that's just the right size for a business card, and the steel corners and aluminum rails make it super durable.

With the ability to hold both legal- and letter-sized documents, the Advantus Companion is a versatile option. It's made of a very sturdy material with two handles, and the lid is tall enough that folder labels will not get crushed.

With a lot of storage space for its compact size, the Avlone Double Closure is great for storing important documents. It has a glow-in-the-dark strip so it can be found easily in emergency situations, and can also hold money, electronics, and any other valuables.

Featuring a front-latching lid that doubles as a business card holder, the Iris Clear provides both convenience and durability. It has a rail for hanging folders and an opening that can be fitted with a padlock to protect sensitive documents.