Audio compression reduces loud sounds which are above a certain threshold while quiet sounds remain unaffected. Compression and limiting are identical in process but different in degree and perceived effect. A limiter is a compressor with a high ratio and, generally, a fast attack time. Limiters are common as a safety device in live sound and broadcast applications to prevent sudden volume peaks from occurring.
Check out these audio plugins and soundware (samples, presets, etc.) and plugin hosts for all operating systems (Windows, MacOS, Linux, iOS and Android), tagged as Dynamics (Compressor / Limiter). They are sorted by date added (newest first).