Wirecutter

The E7 is much heavier and space-filling than non-electric converters, but it gives you one-touch raising to memory positions, a lot of workspace, and an optional lower keyboard tray.

yotpo

amazon.com

TechGearLab

The Fenge Sit to Stand Desk Converter was one of the unsung heroes of our review. It strikes a balance between simplicity, ease of use, quality of materials, and affordability. Just open the box and this riser is ready to go. It features a single lever, a small pneumatic spring, and rubber wheels integrated into the legs of two of the feet, so when you elevate your workstation, the wheels roll along your desk until you get it in the proper position. It is simple, intuitive, and relatively easy to raise and lower. This is the lightest gas spring model in our test fleet, so it's easy to move between desks or to set it aside when you need it out of the way. It also proved to be just as stable as the burlier gas spring models, despite being one of the lightest. 
The Fenge is more pared down than other models in that it lacks a keyboard tray. That said, it is comfortable enough to use with a laptop. Additionally, while it is easy to raise and lower this riser, it still requires effort. To activate the gas spring, you must give the workstation a slight boost past the first inch. When you lower it, it lowers smoothly until the final inch when it wants to collapse into its footprint. This could be a problem if you tried to raise or lower the desk with a full cup of coffee balanced on your workstation &#40;not recommended!&#41;. This certainly isn't a dealbreaker, but it took our testers a few tries to master the raising and lowering mechanism on this model. Finally, while the rubber wheels did not leave any marks on our desks, they may leave marks on yours over time as the wheels wear down. Despite these issues, the Fenge is a great option for those seeking a portable laptop riser on a budget, especially those with minimal office space or smaller desks. 
Size Tested: 25.7"

walmart

The popular FlexiSpot M7 AlcoveRiser quickly won our hearts, earning the top spot in our review. This model ticks the boxes on nearly every one of our metrics &mdash; it provides a wide range of adjustability, raises straight up and down, and moves fairly effortlessly between positions. As a bonus, it's affordable and aesthetically pleasing. This riser is a slightly less beefy, but only marginally less stable, option than the other FlexiSpot in our review. There is minimal assembly required, as the brackets are pre-installed on the keyboard tray &mdash; all you have to do is slide the tray into position and lock it into place. As such, it is easy to ditch the keyboard tray if you only want to use the main workstation. Like other pneumatic risers, it is nearly effortless to raise, and because there are no pre-programmed heights for adjustment, you can hone in on the perfect height for your desk. 
There are a few relatively insignificant drawbacks with the M7. Similar to other pneumatic risers, this desk requires some effort to overcome the spring and lower your workstation. In the lowest position, our reviewers also noticed some play in the keyboard tray. We didn't find that to be a major issue, but if you are someone who types vigorously or uses a manual keyboard, this may be annoying. The workstation features an "alcove" cut-out, which creates more space for unimpeded typing. However, this could be a disadvantage if you wish to use the workspace for monitor/s and a laptop. Finally, the keyboard tray on the 28" model proved a bit narrow for use with a horizontal mousepad, though it does accommodate a keyboard and mouse without a mousepad just fine. Overall, this riser is great for students and telecommuters seeking a nearly effortless sit-to-stand desk converter that won't break the bank. 
Size Tested: 28"

The popular FlexiSpot M7 AlcoveRiser quickly won our hearts, earning the top spot in our review. This model ticks the boxes on nearly every one of our metrics &mdash; it provides a wide range of adjustability, raises straight up and down, and moves fairly effortlessly between positions. As a bonus, it's affordable and aesthetically pleasing. There is minimal assembly required, as the brackets are pre-installed on the keyboard tray &mdash; all you have to do is slide the tray into position and lock it into place. As such, it is easy to ditch the keyboard tray if you only want to use the main workstation. Like other pneumatic risers, it is nearly effortless to raise, and because there are no pre-programmed heights for adjustment, you can hone in on the perfect height for your desk. 
There are a few minor drawbacks that come with this model. Similar to other pneumatic risers, this desk requires some effort to overcome the spring and lower your workstation. In the lowest position, our testers noticed some play in the keyboard tray. While it's not a major issue, individuals who type vigorously or use a manual keyboard may find it annoying. The workstation features an "alcove" cut-out, which creates more space for unimpeded typing. However, this could be a disadvantage for those who wish to use the workspace for monitor/s and a laptop. Finally, the keyboard tray on the 28" model proved a bit narrow for use with a horizontal mousepad, though it does accommodate a keyboard and mouse without a mousepad just fine. Overall, the M7 is great for students and telecommuters seeking a nearly effortless sit-to-stand desk converter that won't break the bank. 
Size Tested: 28"

Standing Desk Converter Comparison