buncha.tools
New

Sports & fitness

Coaching tools, intervals, training-session builders, and the cross-sport math (pace, heart rate, calories, 1RM) that every athlete needs.

On-device — your training data stays with you.
Gf
General Fitness
HIIT timers, calorie + macro math, heart-rate zones — the universal fitness stack regardless of sport.
12 tools · 5 sectionsOpen
Rn
Running & Track
Pace per mile/km, threshold zones, splits, lap timer. Long run or interval session, both covered.
9 tools · 4 sectionsOpen
Sg
Strength & Gym
1RM calculator, plate math, workout split planner. The lifting essentials.
12 tools · 4 sectionsOpen
Sc
Soccer
Training session generator (warm-up + drills + game + cool-down), match clock, drill timing.
12 tools · 4 sectionsOpen
Cy
Cycling
Pace, intervals, heart-rate zones for road / gravel / mountain bike training.
7 tools · 3 sectionsOpen
More sports coming

Tennis, basketball, swim, climbing, golf — each sport has specifics worth its own kit. Tell us what you'd use: hello@buncha.tools. Meanwhile, browse all 240 tools.

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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
240
Free tools
Across 14 categories
7
Visual editors
PDF · image · video · audio
32
Curated kits
By profession + lifestyle
17
AI tools
Powered by Claude API
Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.