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Show HN: We built an open source, zero webhooks payment processor

https://github.com/flowglad/flowglad
132•agreeahmed•3h ago•92 comments

Show HN: MCP Security Scanning Tool for CI/CD

https://smart.mcpshark.sh/
11•devops-coder•26m ago•0 comments

Show HN: I built an interactive HN Simulator

https://news.ysimulator.run/news
469•johnsillings•1d ago•206 comments

Show HN: OCR Arena – A playground for OCR models

https://www.ocrarena.ai/battle
202•kbyatnal•4d ago•61 comments

Show HN: Experimental eBPF Firewall in Rust with Heuristic Risk Scoring

https://github.com/N1ghttm4r33/Antivirus
2•n1ghtm4rr3•2h ago•0 comments

Show HN: SafeShare – Clean tracking params locally (PWA and bookmarklets

https://j-ai-71.github.io/Supersystem/
2•safeshare•3h ago•0 comments

Show HN: Datamorph – A clean JSON ⇄ CSV converter with auto-detect

https://datamorphio.vercel.app
22•sumit_entr42•4d ago•6 comments

Show HN: Superglue – OSS integration tool that understands your legacy systems

https://superglue.ai
7•sfaist•4h ago•1 comments

Show HN: We cut RAG latency ~2× by switching embedding model

https://www.myclone.is/blog/voyage-embedding-migration/
16•vira28•13h ago•3 comments

Show HN: Search London StreetView panoramas by text

https://london.publicinsights.uk
37•dfworks•5d ago•13 comments

Show HN: Cynthia – Reliably play MIDI music files – MIT / Portable / Windows

https://www.blaizenterprises.com/cynthia.html
85•blaiz2025•1d ago•29 comments

Show HN: Fractalbits – S3 compatibe store,1M iops p99~5ms,using Rust and Zig

https://github.com/fractalbits-labs/fractalbits-main
6•thomas_fa•6h ago•0 comments

Show HN: Sparse Matrix-Vector Multiplication that works at 30–90% sparsity

https://github.com/vlejd/macko_spmv
5•vlejd•6h ago•1 comments

Show HN: Stun LLMs with thousands of invisible Unicode characters

https://gibberifier.com
190•wdpatti•1d ago•104 comments

Show HN: Deft-Intruder – Real-time malware detection daemon for Linux

https://github.com/539hex/deft-intruder
2•539hex•6h ago•0 comments

Show HN: I wrote a minimal memory allocator in C

https://github.com/t9nzin/memory
132•t9nzin•1d ago•30 comments

Show HN: BTreePlus – A cache-optimized B+Tree engine for .NET faster than SQLite

https://www.nuget.org/packages/BTreePlus
2•staloriana•8h ago•0 comments

Show HN: Hypercamera – a browser-based 4D camera simulator

https://dugas.ch/4d_creatures/4d_camera.html
16•chronolitus•6d ago•4 comments

Show HN: Supabase-Test – Fast Isolated Postgres DBs for Testing Supabase RLS

https://www.npmjs.com/package/supabase-test
29•pyramation•5d ago•10 comments

Show HN: Virtual SLURM HPC cluster in a Docker Compose

https://github.com/exactlab/vhpc
56•ciclotrone•6d ago•14 comments

Show HN: How I think tabs should be managed in a terminal

https://v0.app/chat/iterm-next-demo-gShY36OWRB7
3•novoreorx•10h ago•0 comments

Show HN: Build the habit of writing meaningful commit messages

https://github.com/arpxspace/smartcommit
109•Aplikethewatch•3d ago•131 comments

Show HN: Axe - A Systems Programming Language with Builtin Parallelism and No GC

https://axelang.org/
13•death_eternal•1d ago•1 comments

Show HN: BreakToGoal – A planner calendar that break big goals into tasks

https://breaktogoal.com
2•jtnt101•12h ago•0 comments

Show HN: I built an interactive map of jobs at top AI companies

https://map.stapply.ai
12•kalil0321•1d ago•4 comments

Show HN: Colonet – Anonymous forum, no sign-up needed

https://colonet.revantoa.workers.dev
3•mvphauto•12h ago•0 comments

Show HN: Forty.News – Daily news, but on a 40-year delay

https://forty.news
436•foxbarrington•3d ago•177 comments

Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker

https://wealthfolio.app/?v=2.0
671•a-fadil•4d ago•213 comments

Show HN: The Wiki Game - reach target Wikipedia page by clicking hyperlinks only

https://apps.apple.com/us/app/the-wiki-game-wikipedia-game/id6755500017
3•frayo44•14h ago•1 comments

Show HN: I wrote my lecture notes in Typst

https://github.com/zhengnanli/ss-notes
3•subtlemuffins•15h ago•0 comments
Open in hackernews

Show HN: Secure private diffchecker with merge support

https://diffchecker.dev
14•subhash_k•2h ago
Built a minimal diff checker with merge feature.

1. Supports 25K+ lines.

2. Character level instant diff.

3. Diff merge feature.

4. Share able links.

5. 100% secure, all diff computation happens in browser.

No other website offering high quality diff checker and merge feature with just browser only implementation.

Please review the website in detail and share feedback.

Comments

runningmike•1h ago
Do you release the code as FOSS?
subhash_k•1h ago
Unfortunately No. Planning to monetize through ads once UI is polished.
bramhaag•1h ago
Why would releasing the code under a FOSS license prevent you from adding ads?
subhash_k•1h ago
To be honest. Never really thought about it fully. I don't know monetization plan as well. I just wanted to create better private version of diff checker and merge. Will think through and update here.
KomoD•57m ago
Not so secure and private then if you're planning to embed a bunch of ad tracking scripts...
subhash_k•54m ago
The input data will not be passed on to any server which include ads as well. The input will not be persisted so no way the data is accessible other that the user.

This can be tested by disabling the internet and checking the diff.

jiehong•1h ago
I’m still finding a local instance of Beyond Compare [0] unbeatable.

Especially its table compare feature [1].

[0]: https://www.scootersoftware.com/

[1]: https://www.scootersoftware.com/v4help/viewdata.html

subhash_k•1h ago
Never had a need to do table comparison. Looks like customised csv diff comparison. Will look into and see if i can add it as feature or different page/tool.
jiehong•1h ago
I needed it for diffing big csv files where the diff was complicated to understand, and limited to some columns out of 30+ columns.

Might be niche, though.

recursive•1h ago
Some of the CSS is making the numbered steps start at 8 instead of 1. In particular

    ol { counter-reset: steps; }
subhash_k•1h ago
Can you please share the link of diff? You can copy it from the website after input by clicking share as url button, so that it will easy for me to debug. Thanks for the feedback.
thealistra•5m ago
Bro no one will use a web service and trust it is 100% private. This is an unprovable claim. Maybe it is private now, but you sell this in 5 years and it stops being so.

Maybe a JavaScript ad jailbreaks an iframe and reads this.

There is no beating a locally running program