Tools

Rented a car in Europe and seeing a 130 sign? The formula, common speed limits in a table, mental shortcuts, and who uses MPH vs KM/H.

Phone screen recordings (iOS .mov / Android .mp4) need GIF conversion for Twitter/X auto-loop. Paths for the 5 MB mobile and 15 MB desktop caps.

Reddit allows GIFs up to 100 MB platform-wide, but subreddit AutoMod usually caps yours at 8-10 MB. Exact xconvert settings to clear them.

Convert screen-recording MP4 to clean GIF for Slack, Notion, GitHub READMEs, and wikis. Exact xconvert settings and file-size budgets per destination.

Slack custom emoji are capped at 128 KB and 128×128 px. Exact xconvert settings to ship a watchable animated emoji at that tiny size.

Twitter/X allows 15 MB GIFs from desktop, only 5 MB from mobile. Exact xconvert settings for either limit, plus the 1280×1080 dimension cap.

Compress a GIF to fit Discord’s 10 MB free or 50 MB Nitro cap. Width-halving, frame drops, and palette tricks that shrink GIFs by 60-80%.

A single xconvert encode that satisfies Spotify, Apple Podcasts, and Amazon Music – no need to re-encode the episode three different ways.

iPhone Voice Memos save as M4A files up to 100 MB+. Convert to MP3 and compress to fit email attachments and AirDrop with xconvert.

Discord’s 10 MB free / 50 MB Nitro audio caps. Exact xconvert bitrate and sample-rate settings for voice clips, music, and podcast snippets.