Best of Show HN of Apr, 2026


best of all time best of today best of yesterday best of this week best of this month best of last month best of this year best of 2025 best of 2024 best of 2024 yc w26 yc s25 yc w25 yc s24 yc w24 yc s23 yc w23 yc s22 yc w22 yc s21 yc w21 yc s20 yc w20 yc s19 yc w19 yc s18 yc w18 yc all-time 3d algorithms animation android [ai] artificial-intelligence api augmented-reality big data bitcoin blockchain book bootstrap bot css c chart chess chrome extension cli command line compiler crypto covid-19 cryptography data deep learning elexir ether excel framework game git go html ios iphone java js javascript jobs kubernetes learn linux lisp mac machine-learning most successful neural net nft node optimisation parser performance privacy python raspberry pi react retro review my ruby rust saas scraper security sql tensor flow terminal travel virtual reality visualisation vue windows web3 young talents
#1 Show HN: A game where you build a GPU

964 points | 187 comments | Apr 04, 2026 | by Jaso1024

visit website

#2 Show HN: I built a tiny LLM to demystify how language models work

915 points | 134 comments | Apr 06, 2026 | by armanified

visit website

#3 Show HN: Brutalist Concrete Laptop Stand (2024)

786 points | 240 comments | Apr 07, 2026 | by sam-bee

visit website

#4 Show HN: I built a frontpage for personal blogs

783 points | 195 comments | Apr 03, 2026 | by ramkarthikk

visit website

#5 Show HN: Apfel – The free AI already on your Mac

743 points | 157 comments | Apr 03, 2026 | by franze

visit website

#6 Show HN: boringBar – a taskbar-style dock replacement for macOS

520 points | 308 comments | Apr 12, 2026 | by a-ve

visit website

#7 Show HN: Pardonned.com – A searchable database of US Pardons

501 points | 276 comments | Apr 11, 2026 | by vidluther

visit website

#8 Show HN: Smol machines – subsecond coldstart, portable virtual machines

499 points | 152 comments | Apr 17, 2026 | by binsquare

visit website

#9 Show HN: Is Hormuz open yet?

484 points | 209 comments | Apr 08, 2026 | by anonfunction

visit website

Web3 Jobs – Start a career in Web3

Blockchain, Solidity, Smart Contracts and Crypto Jobs

Web3 Jobs

#10 Show HN: Ghost Pepper – Local hold-to-talk speech-to-text for macOS

467 points | 200 comments | Apr 06, 2026 | by MattHart88

visit website

#11 Show HN: OSS Agent I built topped the TerminalBench on Gemini-3-flash-preview

393 points | 148 comments | Apr 27, 2026 | by GodelNumbering

visit website

#12 Show HN: Honker – Postgres NOTIFY/LISTEN Semantics for SQLite

327 points | 84 comments | Apr 23, 2026 | by russellthehippo

visit website

#13 Show HN: I made a YouTube search form with advanced filters

325 points | 204 comments | Apr 06, 2026 | by nevernothing

visit website

#14 Show HN: GovAuctions lets you browse government auctions at once

319 points | 91 comments | Apr 06, 2026 | by player_piano

visit website

#15 Show HN: Tolaria – Open-source macOS app to manage Markdown knowledge bases

318 points | 143 comments | Apr 23, 2026 | by lucaronin

visit website

#16 Show HN: I made a calculator that works over disjoint sets of intervals

314 points | 54 comments | Apr 18, 2026 | by fouronnes3

visit website

#17 Show HN: VidStudio, a browser based video editor that doesn't upload your files

301 points | 109 comments | Apr 21, 2026 | by kolx

visit website

#18 Show HN: Real-time AI (audio/video in, voice out) on an M3 Pro with Gemma E2B

298 points | 38 comments | Apr 05, 2026 | by karimf

visit website

#19 Show HN: An interactive map of Tolkien's Middle-earth

291 points | 70 comments | Apr 07, 2026 | by frasermarlow

visit website

#20 Show HN: PanicLock – Close your MacBook lid disable TouchID –> password unlock

265 points | 116 comments | Apr 17, 2026 | by seanieb

visit website

#21 Show HN: A Karpathy-style LLM wiki your agents maintain (Markdown and Git)

260 points | 115 comments | Apr 25, 2026 | by najmuzzaman

visit website

#22 Show HN: Stop paying for Dropbox/Google Drive, use your own S3 bucket instead

252 points | 208 comments | Apr 07, 2026 | by Zm44

visit website

#23 Show HN: Oberon System 3 runs natively on Raspberry Pi 3 (with ready SD card)

245 points | 114 comments | Apr 12, 2026 | by Rochus

visit website

#24 Show HN: How LLMs Work – Interactive visual guide based on Karpathy's lecture

245 points | 55 comments | Apr 24, 2026 | by ynarwal__

visit website

#25 Show HN: Auto-Architecture: Karpathy's Loop, pointed at a CPU

241 points | 76 comments | Apr 28, 2026 | by fesens

visit website



Don't miss when the next Dropbox or Stripe launches



#26 Show HN: Turning a Gaussian Splat into a videogame

236 points | 63 comments | Apr 23, 2026 | by yak32

visit website

#27 Show HN: Gemma 4 Multimodal Fine-Tuner for Apple Silicon

235 points | 28 comments | Apr 07, 2026 | by MediaSquirrel

visit website

#28 Show HN: Live Sun and Moon Dashboard with NASA Footage

224 points | 69 comments | Apr 28, 2026 | by beeswaxpat

visit website

#29 Show HN: GoModel – an open-source AI gateway in Go

217 points | 75 comments | Apr 21, 2026 | by santiago-pl

visit website

#30 Show HN: Run TRELLIS.2 Image-to-3D generation natively on Apple Silicon

202 points | 40 comments | Apr 20, 2026 | by shivampkumar

visit website

#31 Show HN: I've built a nice home server OS

194 points | 91 comments | Apr 24, 2026 | by Zta77

visit website

#32 Show HN: Drive any macOS app in the background without stealing the cursor

192 points | 43 comments | Apr 28, 2026 | by frabonacci

visit website

#33 Show HN: Every CEO and CFO change at US public companies, live from SEC

191 points | 63 comments | Apr 15, 2026 | by porsche959

visit website

#34 Show HN: Free textbook on engineering thermodynamics

191 points | 48 comments | Apr 26, 2026 | by 2DcAf

visit website

#35 Show HN: I built a social media management tool in 3 weeks with Claude and Codex

190 points | 131 comments | Apr 13, 2026 | by JanSchu

visit website

#36 Show HN: sllm – Split a GPU node with other developers, unlimited tokens

188 points | 104 comments | Apr 04, 2026 | by jrandolf

visit website

#37 Show HN: Rip.so – a graveyard for dead internet things

187 points | 120 comments | Apr 29, 2026 | by bozdemir

visit website

#38 Show HN: I built a Cargo-like build tool for C/C++

177 points | 168 comments | Apr 09, 2026 | by randerson_112

visit website

#39 Show HN: Ithihāsas – a character explorer for Hindu epics, built in a few hours

176 points | 45 comments | Apr 13, 2026 | by cvrajeesh

visit website

#40 Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown

176 points | 32 comments | Apr 04, 2026 | by laszlokorte

visit website

#41 Show HN: CSS Studio. Design by hand, code by agent

175 points | 107 comments | Apr 09, 2026 | by SirHound

visit website

#42 Show HN: TurboQuant-WASM – Google's vector quantization in the browser

165 points | 7 comments | Apr 04, 2026 | by teamchong

visit website

#43 Show HN: Prompt-to-Excalidraw demo with Gemma 4 E2B in the browser (3.1GB)

163 points | 62 comments | Apr 19, 2026 | by teamchong

visit website

#44 Show HN: A cartographer's attempt to realistically map Tolkien's world

163 points | 31 comments | Apr 07, 2026 | by intofarlands

visit website

#45 Show HN: Mediator.ai – Using Nash bargaining and LLMs to systematize fairness

160 points | 74 comments | Apr 20, 2026 | by sanity

visit website

#46 Show HN: Shader Lab, like Photoshop but for shaders

160 points | 47 comments | Apr 16, 2026 | by ragojose

visit website

#47 Show HN: FluidCAD – Parametric CAD with JavaScript

160 points | 38 comments | Apr 10, 2026 | by maouida

visit website

#48 Show HN: MacMind – A transformer neural network in HyperCard on a 1989 Macintosh

159 points | 42 comments | Apr 16, 2026 | by hammer32

visit website

#49 Show HN: I made open source, zero power PCB hackathon badges

158 points | 18 comments | Apr 04, 2026 | by kaipereira

visit website

#50 Show HN: Agent Vault – Open-source credential proxy and vault for agents

156 points | 56 comments | Apr 22, 2026 | by dangtony98

visit website

#51 Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud

156 points | 21 comments | Apr 06, 2026 | by ikessler

visit website

#52 Show HN: Made a little Artemis II tracker

154 points | 61 comments | Apr 02, 2026 | by codingmoh

visit website

#53 Show HN: Dull – Instagram Without Reels, YouTube Without Shorts (iOS)

153 points | 123 comments | Apr 01, 2026 | by kasparnoor

visit website

#54 Show HN: MDV – a Markdown superset for docs, dashboards, and slides with data

152 points | 55 comments | Apr 18, 2026 | by drasim

visit website

#55 Show HN: LangAlpha – what if Claude Code was built for Wall Street?

148 points | 53 comments | Apr 14, 2026 | by zc2610

visit website

#56 Show HN: Orange Juice – Small UX improvements that make HN easier to read

147 points | 158 comments | Apr 08, 2026 | by latchkey

visit website

#57 Show HN: 41 years sea surface temperature anomalies

147 points | 73 comments | Apr 09, 2026 | by willmeyers

visit website

#58 Show HN: Gova – The declarative GUI framework for Go

143 points | 29 comments | Apr 24, 2026 | by aliezsid

visit website

#59 Show HN: Marimo pair – Reactive Python notebooks as environments for agents

140 points | 35 comments | Apr 07, 2026 | by manzt

visit website

#60 Show HN: Pollen – distributed WASM runtime, no control plane, single binary

136 points | 64 comments | Apr 30, 2026 | by sambigeara

visit website

#61 Show HN: Faceoff – A terminal UI for following NHL games

136 points | 47 comments | Apr 19, 2026 | by vcf

visit website

#62 Show HN: Browser Harness – Gives LLM freedom to complete any browser task

134 points | 66 comments | Apr 24, 2026 | by gregpr07

visit website

#63 Show HN: Libretto – Making AI browser automations deterministic

134 points | 56 comments | Apr 15, 2026 | by muchael

visit website

#64 Show HN: Stage – Putting humans back in control of code review

130 points | 111 comments | Apr 16, 2026 | by cpan22

visit website

#65 Show HN: Hippo, biologically inspired memory for AI agents

128 points | 29 comments | Apr 06, 2026 | by kitfunso

visit website

#66 Show HN: Utilyze – an open source GPU monitoring tool more accurate than nvtop

128 points | 28 comments | Apr 27, 2026 | by ManyaGhobadi

visit website

#67 Show HN: A terminal spreadsheet editor with Vim keybindings

126 points | 50 comments | Apr 27, 2026 | by garritfra

visit website

#68 Show HN: Rocky – Rust SQL engine with branches, replay, column lineage

122 points | 48 comments | Apr 28, 2026 | by hugocorreia90

visit website

#69 Show HN: SPICE simulation → oscilloscope → verification with Claude Code

121 points | 35 comments | Apr 17, 2026 | by _fizz_buzz_

visit website

#70 Show HN: Tusk for macOS and Gnome

120 points | 50 comments | Apr 04, 2026 | by factorialboy

visit website

#71 Show HN: Claudraband – Claude Code for the Power User

120 points | 44 comments | Apr 12, 2026 | by halfwhey

visit website

#72 Show HN: I pipe free sports streams into Jellyfin – no ads, just HLS

120 points | 37 comments | Apr 08, 2026 | by pruz

visit website

#73 Show HN: Contrapunk – Real-time counterpoint harmony from guitar input

118 points | 56 comments | Apr 05, 2026 | by waveywaves

visit website

#74 Show HN: DAC – open-source dashboard as code tool for agents and humans

118 points | 35 comments | Apr 29, 2026 | by karakanb

visit website

#75 Show HN: I built a DNS resolver from scratch in Rust – no DNS libraries

115 points | 68 comments | Apr 02, 2026 | by rdme

visit website

#76 Show HN: Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-V

115 points | 32 comments | Apr 04, 2026 | by noone_youknow

visit website

#77 Show HN: Moon simulator game, ray-casting

114 points | 25 comments | Apr 06, 2026 | by JKCalhoun

visit website

#78 Show HN: CodeBurn – Analyze Claude Code token usage by task

112 points | 27 comments | Apr 13, 2026 | by agentseal

visit website

#79 Show HN: We built a camera only robot vacuum for less than $300 (well almost)

109 points | 56 comments | Apr 06, 2026 | by indraneelpatil

visit website

#80 Show HN: Alien – Self-hosting with remote management (written in Rust)

106 points | 49 comments | Apr 20, 2026 | by alongub

visit website

#81 Show HN: Modo – I built an open-source alternative to Kiro, Cursor, and Windsurf

103 points | 28 comments | Apr 05, 2026 | by mohshomis

visit website

#82 Show HN: TinyOS – A minimalist RTOS for Cortex-M written in C

102 points | 43 comments | Apr 03, 2026 | by hpscript

visit website

#83 Show HN: Flight-Viz – 10K flights on a 3D globe in 3.5MB of Rust+WASM

101 points | 44 comments | Apr 01, 2026 | by coolwulf

visit website

#84 Show HN: Pion/handoff – Move WebRTC out of browser and into Go

101 points | 17 comments | Apr 07, 2026 | by Sean-Der

visit website

#85 Show HN: AI memory with biological decay (52% recall)

98 points | 53 comments | Apr 26, 2026 | by SachitRafa

visit website

#86 Show HN: Plain – The full-stack Python framework designed for humans and agents

97 points | 51 comments | Apr 14, 2026 | by focom

visit website

#87 Show HN: Sycamore – next gen Rust web UI library using fine-grained reactivity

95 points | 75 comments | Apr 01, 2026 | by lukechu10

visit website

#88 Show HN: Adblock-rust Manager – Firefox extension to enable the Brave ad blocker

95 points | 47 comments | Apr 29, 2026 | by electricant

visit website

#89 Show HN: Travel Hacking Toolkit – Points search and trip planning with AI

95 points | 41 comments | Apr 04, 2026 | by borski

visit website

#90 Show HN: NASA Artemis II Mission Timeline Tracker

93 points | 17 comments | Apr 02, 2026 | by AustinDev

visit website

#91 Show HN: SmallDocs – Markdown without the frustrations

92 points | 50 comments | Apr 15, 2026 | by FailMore

visit website

#92 Show HN: Pu.sh – a full coding-agent harness in 400 lines of shell

92 points | 28 comments | Apr 30, 2026 | by nahimn

visit website

#93 Show HN: A WYSIWYG word processor in Python

91 points | 38 comments | Apr 10, 2026 | by chrisecker

visit website

#94 Show HN: OsintRadar – Curated directory for osint tools

83 points | 9 comments | Apr 05, 2026 | by lexalizer

visit website

#95 Show HN: Broccoli, one shot coding agent on the cloud

82 points | 51 comments | Apr 22, 2026 | by yzhong94

visit website

#96 Show HN: We fingerprinted 178 AI models' writing styles and similarity clusters

78 points | 22 comments | Apr 08, 2026 | by nuancedev

visit website

#97 Show HN: Tiao, A two-player turn-based board game

77 points | 38 comments | Apr 26, 2026 | by trebeljahr

visit website

#98 Show HN: Real-time dashboard for Claude Code agent teams

77 points | 28 comments | Apr 01, 2026 | by simple10

visit website

#99 Show HN: Marky – A lightweight Markdown viewer for agentic coding

75 points | 38 comments | Apr 16, 2026 | by GRVYDEV

visit website

#100 Show HN: Built a daily game where you sort historical events chronologically

74 points | 70 comments | Apr 23, 2026 | by damiannn

visit website


Get Top 5 Posts of the Week



best of all time best of today best of yesterday best of this week best of this month best of last month best of this year best of 2025 best of 2024 yc w26 yc s25 yc w25 yc s24 yc w24 yc s23 yc w23 yc s22 yc w22 yc s21 yc w21 yc s20 yc w20 yc s19 yc w19 yc s18 yc w18 yc all-time 3d algorithms animation android [ai] artificial-intelligence api augmented-reality big data bitcoin blockchain book bootstrap bot css c chart chess chrome extension cli command line compiler crypto covid-19 cryptography data deep learning elexir ether excel framework game git go html ios iphone java js javascript jobs kubernetes learn linux lisp mac machine-learning most successful neural net nft node optimisation parser performance privacy python raspberry pi react retro review my ruby rust saas scraper security sql tensor flow terminal travel virtual reality visualisation vue windows web3 young talents

andrey azimov by Andrey Azimov