Show HN Daily Selection (2025-07-02)
- Spegel, a Terminal Browser That Uses LLMs to Rewrite Webpages
- Core – open source memory graph for LLMs – shareable, user owned
- Jobs by Referral: Find jobs in your LinkedIn network
- HackerNewt - Breadth-first exploring HN client for iOS
- I built the tool I wished existed for moving Stripe between countries
- Arch-Router – 1.5B model for LLM routing by preferences, not benchmarks
- Generate presentation slides from Jira backlog. + Demo-playground
- ToplingDB - A Persistent Key-Value Store for External Storage
- Exceptional free templates, component libraries and boilerplates
- I built a VPN management UI for my non-technical family
- A tool to minimize echo chambers on social media
- Fixstars AIBooster – Accelerate AI Training and Cut GPU Costs
- Lifp – A Lisp Built on Bun
- Get off your a** and do push-ups
- A cross-platform terminal emulator written in Java
- I Built a Paul Graham AI Advisor for Founders and Hackers
- Crush Check – AI relationship text analyzer
- Praxos – Context Management for AI Agents
- No one can pronounce my name, so I made this app
Spegel, a Terminal Browser That Uses LLMs to Rewrite Webpages [Productivity]
301 points, 136 comments
Spegel is a terminal browser that uses LLMs to rewrite webpages for better readability or summarization.
- Terminal-based browser
- Uses LLMs to modify webpage content
- Focuses on readability and summarization
Discussion Link, Original Link
Core – open source memory graph for LLMs – shareable, user owned [Developer Tools]
50 points, 20 comments
Core is an open-source memory graph for LLMs that enables shareable, user-owned context across AI applications.
- Portable – Context is not vendor-locked and can be shared across tools.
- Relational – Stores facts with full version history and provenance.
- User-controlled – Choose where data lives and how it's queried (local or hosted).
- Temporal – Every fact is timestamped and retained, never wiped.
- Open-source – Available on GitHub with Docker support.
- Free hosted tier – Optional cloud instance for easy setup.
Discussion Link, Original Link
Jobs by Referral: Find jobs in your LinkedIn network [Business]
109 points, 53 comments
A tool to find job openings at companies where you have LinkedIn connections.
- Filters jobs based on LinkedIn network connections
- Uses JSearch API for job listings
- Considering monetization to offset API costs
Discussion Link, Original Link
HackerNewt - Breadth-first exploring HN client for iOS [Consumer Tech]
39 points, 21 comments
HackerNewt is an iOS Hacker News client that enables breadth-first exploration of comments for better context and navigation in large threads.
- Breadth-first comment exploration for improved readability
- Preserves context in lengthy discussions
- Allows easy skipping of uninteresting threads
- Designed specifically for iOS devices
Discussion Link, Original Link
I built the tool I wished existed for moving Stripe between countries [Finance]
82 points, 41 comments
A tool to simplify and automate the process of migrating Stripe accounts between countries.
- Automates the transfer of products, prices, coupons, and subscriptions
- Handles technical complexity while keeping business operations running
- Allows parallel transfers without interrupting customer payments
- Designed for founders changing company locations or buying businesses abroad
- Affordable alternative to expensive migration services
Discussion Link, Original Link
Arch-Router – 1.5B model for LLM routing by preferences, not benchmarks [Developer Tools]
46 points, 11 comments
Arch-Router is a 1.5B parameter model for preference-based LLM routing, integrated into an open-source proxy, enabling dynamic model selection via plain-language rules.
- Routes prompts based on user-defined preferences (e.g., "contract clauses → GPT-4o")
- Lightweight (1.5B params), runs on a single GPU or CPU
- No retraining needed, supports multi-turn conversations
- Cost and latency-aware routing
- Outperforms larger closed models in conversational routing benchmarks
Generate presentation slides from Jira backlog. + Demo-playground [Productivity]
3 points, 0 comments
Generate presentation slides from Jira backlog with a demo-playground.
- Converts Jira backlog items into presentation slides
- Includes a demo-playground for testing functionality
Discussion Link, Original Link
ToplingDB - A Persistent Key-Value Store for External Storage [Developer Tools]
59 points, 14 comments
ToplingDB is a high-performance persistent key-value store forked from RocksDB, offering significant speed improvements and advanced features.
- 8x faster than RocksDB with CSPP MemTable and ToplingZipTable
- Searchable compression with NestLoudsTrie for efficient key/index storage
- Omits MemTable flush to L0, reducing write amplification
- Distributed compaction with support for MergeOperator and CompactionFilter
- MySQL integration via MyTopling, outperforming InnoDB in most aspects
- Embedded WebView for real-time DB structure visualization
- JSON/YAML configuration and online updates via HTTP
- Deployed in production with ~100 RocksDB PRs submitted (40 accepted)
Discussion Link, Original Link
Exceptional free templates, component libraries and boilerplates [Design]
15 points, 5 comments
Free collection of high-quality templates, component libraries, and boilerplates.
- Exceptional free resources
- Includes templates and component libraries
- Offers boilerplates for quick starts
Discussion Link, Original Link
I built a VPN management UI for my non-technical family [Developer Tools]
3 points, 0 comments
LeiaGuard is a self-hostable VPN management UI for WireGuard designed for non-technical users, featuring multi-language support and self-service onboarding.
- Self-service invites with multi-use invitation codes
- Easy device management via QR codes or config files
- Clean admin panel for user and invite management
- Simple deployment with one-command scripts and Docker Compose
- Secure authentication using NextAuth.js
- Available in English and Farsi
- MIT licensed
Discussion Link, Original Link
A tool to minimize echo chambers on social media [Consumer Tech]
3 points, 0 comments
A tool designed to reduce echo chambers on social media.
- Minimizes echo chambers by diversifying content exposure
- Helps users encounter opposing viewpoints
- Aims to promote balanced discussions on social platforms
Discussion Link, Original Link
Fixstars AIBooster – Accelerate AI Training and Cut GPU Costs [Developer Tools]
4 points, 0 comments
Fixstars AIBooster accelerates AI model training and reduces GPU costs through performance optimization.
- Real-time monitoring of GPU, CPU, memory, and power consumption
- Identifies performance bottlenecks for workload optimization
- Achieves 2-3x speed improvements in AI training
- Reduces costs by maximizing infrastructure efficiency
- Free to try with minimal setup and seamless integration
Discussion Link, Original Link
Lifp – A Lisp Built on Bun [Developer Tools]
3 points, 0 comments
A Lisp-inspired functional programming language built on Bun, designed for ease of transition from C-like languages.
- Built on Bun runtime
- Lisp-inspired but simplified (no car, cdr, or macros)
- Functional programming focus
- Familiar syntax for C-like language users
Discussion Link, Original Link
Get off your a** and do push-ups [Health]
8 points, 7 comments
An app that blocks access to apps like Reddit until you complete push-ups, using AI to track your exercise.
- Uses Apple's Vision API to detect push-ups via body tracking
- Blocks apps using Apple's Screen Time API until push-ups are done
- Customizable schedules, time limits, or triggers (e.g., after work)
- Free and built natively with SwiftUI
- Encourages fitness by replacing doomscrolling with exercise
Discussion Link, Original Link
A cross-platform terminal emulator written in Java [Developer Tools]
3 points, 0 comments
A cross-platform terminal emulator written in Java, based on the jediterm library.
- Built on the jediterm library, originally developed for IDEs
- Can function as a standalone terminal emulator with tabs
- Cross-platform compatibility
- Over 10 years of library development history
- Unique standalone application implementation
Discussion Link, Original Link
I Built a Paul Graham AI Advisor for Founders and Hackers [Business]
18 points, 19 comments
AI advisor for founders and hackers, inspired by Paul Graham's essays.
- Built and deployed in a day using Lovable
- Provides startup advice based on Paul Graham's essays
- Runs on a reasoning model for better insights
- Budget-friendly alternative to human advisors
Discussion Link, Original Link
Crush Check – AI relationship text analyzer [Life Assistant]
3 points, 0 comments
Crush Check AI analyzes text conversations to provide insights on romantic interest and relationship dynamics.
- Provides a crush score (0-100) based on response latency, reciprocity, and sentiment shifts
- Flags potential red flags like breadcrumbing or love-bombing
- Generates a chat timeline for better context
- Allows users to ask questions about their conversation
- Supports iMessage, WhatsApp, and Instagram chat exports
Discussion Link, Original Link
Praxos – Context Management for AI Agents [Developer Tools]
15 points, 3 comments
Praxos is a context manager for AI agents that transforms diverse data sources into a structured Knowledge Graph for reliable, stateful AI operations.
- Parses unstructured and structured data (PDFs, APIs, databases) into a semantically typed Knowledge Graph
- Enables querying and acting on data without requerying, supporting single and multi-chain reasoning
- Learns on the fly by incorporating intermediate, final, and user-edited outputs back into the graph
- Solves document parsing challenges (e.g., insurance policies) by making implicit relationships explicit
- Offers a free tier (up to 200 document pages) and SDK for data extraction, retrieval, and updates
- Uses ontologies to organize data with predefined types, attributes, and relationships
- Combines graph traversal, vector similarity, and key-value lookups for efficient information retrieval
No one can pronounce my name, so I made this app [Education]
3 points, 4 comments
App to help people pronounce names correctly.
- Helps users learn correct pronunciation of names
- Addresses common issue of mispronunciation
- Simple and user-friendly interface