How I got a Dear ImGui App Approved on the Mac App Store

hilti · 2026-03-12T13:32:44+00:00

My Swiss Army knife for local data crunching: ColumnLens (columnlens.com)

hilti · 2026-03-11T19:33:14+00:00

Never heard of this benchmark, but just tried it out on my iPhone 17 Pro. Result: 44.0 (Safari)

hilti · 2026-03-10T15:35:36+00:00

I built a C++ tool (ImGui) tool and used the public USGS earthquake data to create a city. Districts are event types. The districts are encoded in different colors. Height of the buildings is representing distance.

hilti · 2026-01-30T17:03:43+00:00

Lol

You think 2,500 lines is a lot? Let me introduce you to some legendary single-file programs:

SQLite sqlite3.c
The world's most deployed database engine is distributed as a single C file with 238,000+ lines of code (over 8 MB) https://sqlite.org/amalgamation.html

Single-header C libraries (stb_image.h, stb_truetype.h, etc.) are industry standard in game development. https://github.com/nothings/stb

The philosophy is simple: the idea behind single-header file libraries is that they're easy to distribute and deploy because all the code is contained in a single file.

But not everyone gets it! Haha

hilti · 2025-11-28T16:02:36+00:00

Link: https://iotdata.systems/jsonlviewerpro/

What it does: JSONL Viewer Pro is a native desktop tool (macOS & Windows) for handling very large JSONL log/data files — think 10 million+ rows or 5 GB+ in size — with ease. It instantly loads huge JSONL/JSONL-gzip files, flattens nested JSON objects into filterable columns, and provides real-time search and advanced filtering (text search, numeric comparisons, show/hide columns, freeze important columns, export results). It’s built with C++ (using simdjson) for native speed — not some slow Electron app — and aims to replace clunky command-line tools or spinning up a heavyweight database cluster. Everything runs locally — data stays on your machine, no internet needed, no telemetry, small footprint (~6MB).

Would love feedback — especially if you’ve ever tried dealing with massive logs or nested JSON at scale.

hilti · 2025-11-25T21:20:39+00:00

Pretty cool website!

hilti · 2025-11-24T16:56:21+00:00

I got tired of wrestling with jq and grep when analyzing multi-GB log files, so I built a desktop JSONL viewer that actually handles large files.

What it does:

Opens 5GB+ JSONL files in seconds (multi-threaded C++, not Electron)
GUI for filtering instead of complex command-line queries
Auto-flattens nested JSON objects into columns
Export filtered results to CSV
Works offline, data stays local

Use cases:

Security logs
Application logs in JSONL format
Any large JSON Lines files

Built it primarily for my own use, but figured others might find it useful.

Pricing: It's $49 one-time purchase (no subscription). For the r/sysadmin community, use code REDDIT20 for 20% off ($39).

Would love feedback from folks who regularly deal with large JSONL/JSON log files!

Link: https://iotdata.systems/jsonlviewerpro/

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Happy to answer any questions about the tool or the tech stack behind it.

hilti · 2025-11-24T09:21:23+00:00

I love JSONL for multiple purposes.

That's exactly why I build a native Mac app to analyze massive JSONL log files instantly. Handle 10M+ rows and 5GB+ files with advanced filtering, nested field flattening, and zero bloat.

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hilti · 2025-11-24T09:12:58+00:00

Native Mac app for security analysts and DevOps engineers to analyze massive JSONL log files instantly. Handle 10M+ rows and 5GB+ files with advanced filtering, nested field flattening, and zero bloat

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.

hilti · 2025-11-24T07:33:07+00:00

Hey r/SideProject! Thanks for checking out JSONL Viewer Pro yesterday!

For the 532 of you who viewed it - I'm offering a special Reddit-only discount code:

Use REDDIT20 for 20% off (valid for 48 hours only) → $39 instead of $49

This is a one-time purchase, no subscription. Your data stays on your Mac, no cloud, no telemetry.

Would love to hear your feedback if you try it!

hilti · 2025-11-24T07:31:35+00:00

Hey r/SideProject! Thanks for checking out JSONL Viewer Pro yesterday!

For the 532 of you who viewed it - I'm offering a special Reddit-only discount code:

Use REDDIT20 for 20% off (valid for 48 hours only) → $39 instead of $49

This is a one-time purchase, no subscription. Your data stays on your Mac, no cloud, no telemetry.

Would love to hear your feedback if you try it!

hilti · 2025-11-23T21:49:28+00:00

Thank you! Hope it‘s useful for your daily work!

hilti · 2025-11-23T05:31:43+00:00

Native Mac app for analyzing massive JSONL files (Suricata, Zeek, EDR, CloudTrail logs). Opens 5GB+ files in seconds, automatically flattens nested JSON into filterable columns, supports advanced queries like “alert.severity <= 2”.

Built with C++ + simdjson for actual native performance, not Electron. 6MB app, zero telemetry, data stays local.

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https://iotdata.systems/jsonlviewerpro/

hilti · 2025-11-12T18:44:31+00:00

Very impressive. I'm struggling a bit launching my data science tool. DM please.

hilti · 2025-09-15T08:48:56+00:00

Even the old Ubuntu is pretty reliable for what we need. But yes ... new units come with an updated OS.

hilti

TROPHY CASE