How bright is the screen flashlight?

The screen light fills your entire display at maximum brightness. For even more light on mobile, enable the camera LED torch which activates your phone's physical flash LED.

Does the camera LED work on my phone?

The camera LED torch works on Chrome for Android on most devices. It does NOT work on iPhone/iPad (Safari does not support the torch API) or Firefox for Android (no torch API support). If your LED doesn't turn on, the tool tells you why — try opening the page in Chrome instead. You can still use the screen light in any browser.

Can I set a timer so the light turns off automatically?

Yes. Enter any duration in minutes and seconds (from a few seconds up to many hours) or tap a quick preset (30s, 1m, 5m, 15m, 30m, 1h). The light turns off automatically when the timer runs out. Your last-used color, brightness and timer are saved so they are ready to go next time.

Will my screen stay on while using this?

Yes, the tool uses the Screen Wake Lock API to prevent your device from dimming or sleeping while the light is active.

Does it drain my battery?

A bright screen does use more battery than normal. For extended use, keep your device plugged in.

Can I use this offline?

Yes. Once the page has loaded, it works without an internet connection.

Which color is best for preserving night vision?

Red light preserves your eyes' dark-adapted state much better than white or warm light — useful for stargazing, reading a map at night, or walking around without ruining your night vision. Tap the Astronomy (red) reading preset for a one-click setup — it sets red at 15% brightness, the sweet spot for keeping your rod cells adapted.

Can I read at night without it being too bright?

Yes. The brightness slider goes down to 3% so you can use it as a dim reading light in pitch dark without blinding yourself. The Book (warm) reading preset sets a comfortable amber glow at 8% — easy on the eyes for extended reading.

Can I see the time while the light is on?

Yes. Tick the Clock checkbox and the current time appears in large faded digits in the middle of the screen while the light is on. Useful if you're reading in bed and don't want to dismiss the light just to check the clock.

Does the light fade out gently at the end of a timer?

Yes. In the last 30 seconds of a timer, the light gradually dims to off so you're not suddenly plunged into darkness. Helpful as a sleep light.

Is there a mobile app?

A native Android app is in the works — it will give you a one-tap torch without opening the browser and will keep working offline. The web version works on any device right now.

What does Candle mode do?

Candle mode fills the screen with a warm 1800 K glow and simulates the natural 5 Hz flicker of a real flame (scientifically measured — see Nature 2018 study on candle flame oscillation). It is calibrated to be perceptible without being distracting, ideal as a cozy nightlight or reading backlight. The flicker pauses at very low brightness so it is not annoying in bed.

What are Sunset, Aurora and Dawn modes?

They are ambient-gradient modes. Sunset uses long-wavelength oranges and reds that do not suppress melatonin, making it friendly for late-evening use. Aurora cycles through tranquil teal and violet. Dawn fades from deep purple to peach — useful as a slow sunrise wake-up backdrop. You can also pick any two colors yourself with the Custom gradient.

Can I use my own image as a background?

Yes. Switch to Image mode and choose an image from your device. It stays entirely on your phone or computer — it is never uploaded to any server. Great for turning your screen into a soft nightscape, a star chart for kids, or a personal mood-light photo.

Linterna Online Gratis

Convierte tu pantalla en una luz brillante. Activa el LED de la cámara en dispositivos móviles.

Ningún dato sale de tu dispositivo

Pulsa el botón o presiona Espacio para encender

Brillo 100%

Color

Temporizador min sec

Quick set

Reading

Mode

Clock Show time on screen while light is on

Cómo funciona

Pulsa el botón de encendido: toda tu pantalla se convierte en una fuente de luz brillante y uniforme.
Ajusta el brillo: desliza el control de brillo al nivel que te convenga.
Elige un color: blanco para brillo máximo, cálido/ámbar para una luz de lectura cómoda, o rojo para preservar la visión nocturna.
Pasa a pantalla completa: retira la interfaz del navegador para maximizar la zona de luz. Tu pantalla permanece encendida automáticamente.
Configura un temporizador: elige una duración para que la luz se apague automáticamente — útil para uso sin manos.
LED de cámara (móvil): en los dispositivos compatibles, activa el LED flash trasero para un haz mucho más brillante y focalizado.

Cuándo usarla

Apagón: luz instantánea desde cualquier dispositivo, sin descargar una aplicación.
Encontrar objetos en la oscuridad: llaves, cerraduras, objetos caídos.
Lectura nocturna: usa el ámbar cálido o el blanco tenue como luz de lectura suave.
Camping o exterior: luz rápida cuando no tienes instalada una aplicación de linterna.
Visión nocturna: la luz roja preserva la adaptación de tus ojos a la oscuridad.

Luz de pantalla frente a LED de cámara

Tu pantalla produce una luz difusa de amplia zona — perfecta para iluminar una habitación o leer. El LED de la cámara produce un haz focalizado, mucho más brillante, como una linterna tradicional.

Compatibilidad del LED de cámara: Chrome en Android (la mayoría de los dispositivos). No funciona en iPhone/iPad (Safari no tiene API de linterna), Firefox para Android (sin API de linterna) ni los navegadores de escritorio. La herramienta detecta la compatibilidad automáticamente e indica por qué tu dispositivo no puede usarla. Abre la página en Chrome para la mejor experiencia. La luz de pantalla funciona en todos los navegadores.

Herramientas relacionadas

White Screen & Monitor Test Cronómetro Convertidor de colores Regla de píxeles