The 10 Best small Security Envelopes (2023 reviews)

We consider a small security envelope to be a worthy investment in the long run. We are here to help you choose the right one for your needs from all the best available products in market today.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Quality Park Good Price READ REVIEW

Best For print: Buy: HERKKA Good Price READ REVIEW

Best With zero problems: Buy: Aimoh every Pack READ REVIEW

Best For short notes: Buy: Quality Park small Security Envelope READ REVIEW

Best For Mailing Checks: Buy: Amazon Basics small Security Envelope READ REVIEW

Best For company: Buy: Mead small Security Envelope READ REVIEW

Best For Laser Printer: Buy: Amazon Basics reasonable Price READ REVIEW

Best For small things: Buy: Mead number Security Envelope READ REVIEW

Best With address: Buy: Aimoh small Security Envelope READ REVIEW

Best For Mailing off letters: Buy: HERKKA small Security Envelope READ REVIEW

Best Overall: Quality Park Good Price

Buy on Amazon

This is a good box of envelopes that you can use to mail anything of normal sized paper in. They envelope things like folded paper that one puts into them, and they seal. It allows a trifold 8.5x11 piece of paper to fit without additional folding. The peelable paper strip protects the adhesive from dust so your envelopes last longer in storage. They give good privacy and seal securely.

These envelopes are first class, easy to use and letters fit nicely in them. The self-stick part works great too and no more licking envelopes. It is easy to use, better than the gummed labels.

• Self adhesion is a great plus and works like a charm
• Perfect letter size, sturdiness/paper quality, adhesion
• Perfect for personal or business mailing

Best For print: HERKKA Good Price

Buy on Amazon

The herkka good price is the best reliable envelope on the market today. These are high quality envelopes with super adhesion. It is designed with peel & seal closure—no moisture needed and a premium security tint to protect sensitive information and a super strong self-seal strip. The flap adhesive is strong and holds the envelope closed well. The adhesive is great and sheerness. It is easy to use peel and seal feature is an absolute time saver and mess saver.

These envelopes have reliable and convenient self-seal and good adhesion. Security printed on the inside prevents anyone from looking with a light bulb for what's within. They are also the perfect size business envelope and easy to write on.

• Secure envelopes are secure and easy to close
• Easy to use peal off and self stick close
• Delivers what they promise

Best With zero problems: Aimoh every Pack

Buy on Amazon

Not everyone likes to purchase envelope for their daily purpose, but the aimoh every pack would be an anomoly. These opaque bright white staples envelopes allow for easy address viewing. It is manufactured from heavyweight extra white sturdy wove stock paper, combining a professional security tint pattern and smooth finish. The adhesive strip is wider and carries the entire length of the envelope flap. It creates a tough seal across the width of the envelope.

These business envelopes are of excellent quality and weight. It works with zero problems plus it is great for a big mailing.

• Peels easy and yet is secure for contents
• Good investment for long term

Best For short notes: Quality Park small Security Envelope

Buy on Amazon

We would, of course, be remiss if we didn't mention quality park small security envelope for regular usage. These envelopes are great for holding money. They're self adhesive and they have that printed pattern on the inside so people can't shine a bright light and make out the contents, which is apparently enough of a risk that security envelopes exist. The peel able paper strip is not only convenient, it protects your adhesive from dust so envelopes last longer. These envelopes are private, easy to write on, and sealing in solid.

Envelopes increase efficiency with removable strips and adhesives that seal without moisture—simply peel and press. It is good for paying contractors checks or cash.

• Good envelope, great adhesion, nice weight of paper and good security
• Lot of satisfied buyers

Best For Mailing Checks: Amazon Basics small Security Envelope

Buy on Amazon

These are a great basic envelope. It is perfect for mailing checks or sending checks to school without a lot of extra space leftover like a #10 envelope. The envelopes are well-made, with a sturdy construction that keeps contents secure during transit. The security design inside hides the contents, and the peel-and-stick feature is convenient, especially if you have to mail a lot of items at once.

These are Micro SD cards so there isn’t room on the card to write anything. The adhesive stays in place even after several months of storage. The pack of 100 is great for keeping a stock on hand for all your mailing needs. The envelopes are lined well enough that a check cannot be seen through the envelope.

• Perfect size for sending checks and very good quality papers
• Good investment for long term

Best For company: Mead small Security Envelope

Buy on Amazon

These envelopes are perfect for anything you could possibly need an envelope for. They are durable, and the glue is sticky enough to keep the envelope sealed. To make matters worse, the glue allows the flap to be unpeeled without destroying the envelope, so if you are careful you can unpeel the flap, remove the contents, and reseal the envelope, all without leaving any sign that the envelope has been tampered with.

These security envelopes are convenient in that they are self-sealing, and secure in that it is very difficult and perhaps even impossible to see any outline of the contents when held up to a light. There's about an inch of space without adhesive on each side of the flap after you close it. The peel and stick makes it convenient and easy to use. These really do stay closed, and once sealed, hold together nicely. These are good quality, and the seal stipe works perfectly.

• Good quality and adhesive works well
• Sealing the envelope is super easy
• Good quality envelopes that you don't have to lick to seal

Best For Laser Printer: Amazon Basics reasonable Price

Buy on Amazon

These are very good envelopes,professional quality. They contain pieces of paper nicely for putting in the mail. It can be used as a makeshift filing system. This is a very large box of envelopes. It will hold 3 or 4 sheets of tri-folded regular printer paper for mailing purposes. The envelopes are gummed near enough the ends of the envelopes to keep them fully closed. It has security printing on the interior so nothing shows through. The envelope is also a nice weight in the hand.

• Not too thin and work well
• Plain box of envelopes that work well for securing paperwork
• High quality confidential envelopes for secure sealing and mailing

Best For small things: Mead number Security Envelope

Buy on Amazon

These are basic, old fashioned security envelopes. They are a good value for small envelopes to enclose notes or checks. The security paper inside the envelope really masks what you put into the envelope. It sticks well and keeps the checks or pertinent information safe.

These envelopes have plenty of glue so they are easy to seal. It comes with a free pizza. It is the right size and use them for all letters.

• Good investment for long term
• One of the new comers and featured product

Best With address: Aimoh small Security Envelope

Buy on Amazon

We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate envelope. The aimoh small security envelope is exactly that - it's a simple envelope that hits all the right notes. Aimoh’s double window security tinted self seal check envelopes uses a premium adhesive peel and seal designed strip to create a strong, secure self-sealing seal. It fits quickbooks checks perfectly to add to that it is great with deluxe triple business checks.

These envelopes are great quality and there are so many of them. The size is right so they don't wiggle out of alignment with the windows but the check slides cleanly into the envelope. These are secure and the adhesive holds well. It is manufactured from heavyweight extra white sturdy wove stock paper, combining a professional security tint pattern and smooth finish. These fit snugly so that cheques don't move around while in transit but are still reasonable to stuff. These envelopes are great for QB checks.

• Thick envelopes and super great adhesive
• One of the new comers and featured product

Best For Mailing off letters: HERKKA small Security Envelope

Buy on Amazon

The herkka small security envelope is satisfactory and appropriate and fits well with your daily usage. If you are using quickbooks for your small business these will fit standard sized business checks. They have a flip and seal design that makes it easy to close them without any hassle. They are smooth, clean lines, and beautifully white envelopes. The security pattern is effective when held up to the light.

These are easy to use and seal well. The windows are perfect for mailing off letters. It has 500 envelopes which can meet a long lasting supply, ideal for mass mailing of everyday business tasks.

• 10 dual window envelope, fits std checks
• More wetness, no more pulling paper off
• Good investment for long term