Online Resources
Right-click on empty space in the project bin, or click the kdenlive-add-clipgo-downAdd Clip icon on the project bin toolbar, and select Online Resources.

Kdenlive has direct access to various online resources for images, video, and audio. An internet connection is required, of course.
See the chapter Online Resources for more details.
Examples
*[RGB]: Red, Green, Blue
*[VFX]: Visual Effects
*[feathering]: Smoothing or blurring the edges of a feature
*[LFO]: Low-Frequency Oscillation
*[dB]: decibel
*[LUFS]: Loudness Units Full Scale
*[AI]: Artificial Intelligence
*[LLM]: Large Language Model
*[HSV]: Hue, Saturation, Value
*[SOP/Sat]: S(lope), O(ffset), P(ower) / SATuration
*[CDL]: Color Decision List
*[HSL]: Hue, Saturation, Lightness - Using HSL color space is useful for subtle color changes
*[px]: pixel
*[hh:mm:ss:ff]: hours:minutes:seconds:frames
*[Hz]: Hertz
*[CIE]: Commission internationale de l'éclairage, French for International Commission on Illumination
*[DCI]: Digital Cinema Initiative
*[nadir]: direction pointing directly below a particular location
*[OS]: Operating System
*[decibel]: Unit of measurement (dB) for sound levels
*[clipping]: A form of distortion that limits a signal once it exceeds a threshold
*[Spectrogram]: Visual representation of the spectrum of frequencies of a signal as it varies with time
*[prevent clipping]: Dynamic range compression (DRC)is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet sounds, thus reducing or compressing an audio signal's dynamic range.
*[SNR]: Signal-to-Noise Ratio
*[dbFS]: Decibels relative to full scale
*[QHD]: Quad-HD
*[UHD]: Ultra High Definition
*[XML]: Extensible Markup Language
*[fps]: frames per second