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About this tool
Magnify what your camera sees with zoom, invert, contrast and grayscale modes.
Low-Vision Camera Magnifier turns a phone or laptop camera into a live electronic magnifier: it opens the rear-facing camera and renders the stream with adjustable zoom from 1× to 5×, contrast from 0.7× to 3×, plus colour inversion and grayscale. It is the software equivalent of a handheld video magnifier for reading small print — a medicine label, a restaurant menu, a utility bill — without buying dedicated hardware. Nothing is recorded or uploaded; the video is filtered in the page and the stream stops the moment you press stop.
Open Low-Vision Camera Magnifier on AltFTool — it loads instantly in your browser.
Press Start camera and grant the browser camera permission; the tool requests the rear, environment-facing lens.
Hold the device over the page and drag the Zoom slider between 1x and 5x, then the Contrast slider up to 3x.
Switch on Invert colors or Grayscale to cut glare, and press Stop camera to end every track on the stream.
Zoom moves in 0.1× increments between 1× and 5×, so you can settle exactly where the text is sharp instead of jumping past it.
Contrast is its own control up to 3×, which is what rescues faded receipts and low-ink print that simply making bigger does not fix.
Inverting to light-on-dark and stripping colour both cut glare and colour noise, the two adjustments low-vision readers reach for most often.
Up to 5× on top of whatever optical framing your camera gives you, adjustable in 0.1× steps and starting at 1.5×. Moving the device closer to the page adds more effective magnification, since the digital zoom multiplies whatever the lens already sees.
No. The camera stream is displayed and filtered locally in the page — there is no capture button, no upload and no storage. Pressing stop ends every track on the stream, which is what turns the camera indicator light off.
It requests the environment-facing (rear) camera, because that is the one you point at a page. On a device with only a front camera the browser falls back to that, but there is no in-page switch between lenses.
No — it is a general reading aid, not a medical device or a substitute for an assessment. If you are finding everyday print harder to read, see an optometrist or a low-vision specialist, who can also advise on dedicated magnifiers and system-level accessibility settings.