coleowenoj2055 GitHub avatar

apexdeco-dive-planner-2026

coleowenoj2055

ApexDeco is a browser-based, static decompression planning tool for technical mixed-gas diving that supports open-circuit and CCR workflows using Buhlmann ZHL-16C with gradient factors and multiple VPM variants.

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License

GPL-3.0

Last updated

2026-08-01

AI repository intelligence
FR-AI / ANALYSIS

Why it is worth attention

It delivers a fairly complete technical dive planning workflow entirely in the browser, without a backend, covering both open-circuit and rebreather planning, multiple decompression models, bailout handling, and plain-text export.

Who it is for

  • Technical divers planning mixed-gas open-circuit dives
  • Closed-circuit rebreather divers needing bailout and gas-switch planning
  • Dive instructors or expedition planners who want a portable planning aid
  • Divers interested in comparing Buhlmann gradient-factor and VPM decompression schedules

Use cases

  • Create a trimix open-circuit dive plan with multi-level segments and decompression stops
  • Plan a CCR dive including bailout gases and gas-switch validation
  • Compare decompression schedules by selecting ZHL-16C with gradient factors or VPM-A/B variants
  • Export a completed dive plan as plain text for team review or logging

Strengths

  • No server-side runtime required; can be run from a hosted build or a local static server
  • Supports air, nitrox, trimix, and other mixed gases for both open-circuit and CCR workflows
  • Includes multiple decompression models: Buhlmann ZHL-16C with gradient factors and VPM-A, VPM-B, VPM-B/E, and VPM-B/GFS
  • Provides multi-level profile planning with tissue carry-over, gas consumption, OTU/CNS, interactive charts, bailout planning, and plain-text export

Considerations

  • Requires a modern browser and adequate display area for interactive charts; there is no offline desktop installation
  • The README notes that more documentation about the supported calculation models is still future work
  • It is a planning aid only; all results must be manually reviewed according to training, equipment, and dive procedures

README quick start

Getting Started

Description

ApexDeco v2026 is a browser-based decompression planning tool for technical dives, supporting mixed-gas planning with open-circuit and CCR workflows in a hosted or local setup.

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