Reckoner

Open a review pack

A review pack is a prepared worklist with source files. Choose its contents list, then its extracted source folder or one matching file. Importing never downloads sources or runs task instructions. Review opens separately, leaving this queue here.

Try the 14 bundled synthetic examples · No download or file picker needed.

Download three small source-review packs: wildlife, brownfields and a territorial map.

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Limits and source lists

Open an older practice or source list

Up to 200 tasks and a 1 MiB manifest. Selected folders: at most 1000 files and 100 MiB. Each image/PDF is at most 20 MiB; each UTF-8 TXT/HTML/XML source at most 200 KB. Only a selected item’s source bytes are read when opening review. Keep original files beside exported review backups. Extract ZIPs yourself; this page does not execute packages or extract archives.

External HTTPS references are displayed for an explicit user action. Download a permitted source yourself, then choose it here. An absent expected hash is labelled unverified; a stated hash or size mismatch is refused.