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Developer Tools

CtxSift logo

1. CtxSift

In agentic workflows, raw command outputs and state recollection after compaction contribute to major token waste. Agents often pull raw terminal output into context even when they only need a few anchors, then pay the same cost again later when compaction forces them to reread files or rerun commands.CtxSift was built to cut that loop down to two operations: keep only the signal that matters now, then recover it later without rebuilding the whole state trail.It was inspired by the original Distill project and extends that direction toward local execution, file rereads, and read-after-compression state recovery for coding agents.How it worksWith CtxSift, your agents use two steps to keep minimal token footprint:1. Extract and cache only what they need from raw outputs2. Look up context later instead of repeatedly re-running commands or dragging raw terminal output back into the session.That's it. Unlike other token savers, which can get heavy can confuse the agent with multiple tools, CtxSift keeps it simple and light. No multiple tools, MCP servers or sandbox spin-up dependencies.

Developer ToolsOpen SourceProductivity
0
116
pretext.cool logo

2. pretext.cool

20 interactive demos for Pretext, the 15KB text layout engine by Cheng Lou. Games, ASCII art, playground, API docs — all browser-based. Community-maintained, MIT-licensed, 29.5k GitHub stars.

Developer ToolsOpen SourceWeb Development
0
96
AppScreens logo

3. AppScreens

App Store and Google Play screenshots from one editable projectAppScreens turns real app screens into polished, localized, store-ready screenshots for the Apple App Store and Google Play.Developers, founders, marketers, ASO teams, agencies, and product teams use AppScreens to create one editable screenshot project, then resize, localize, restyle, export, and upload store-ready assets without rebuilding every file by hand.With AppScreens, teams can:- Create App Store and Google Play screenshots from real app UI- Generate multiple iOS, Android, tablet, feature graphic, and custom sizes- Add AI captions for clearer, benefit-led store creative- Localize screenshots across 80+ localizations with AI translation and RTL support- Create ASO variants for Product Page Optimization, Custom Product Pages, and Google Play experiments- Export high-resolution PNGs or upload through App Store Connect and Google Play workflowsRaw screenshots show the interface. AppScreens turns them into polished store creative that explains the value, supports localization, and helps teams test screenshot ideas faster.Trusted by 150k+ app pros with 10M+ screenshots exported.

Design ToolsDeveloper ToolsMobile Development
0
112
Best Temp Mail logo

4. Best Temp Mail

Best Temp Mail – Deliverability-Focused Temporary Email PlatformReliable Temporary Email Built for Real Inbox DeliveryBest Temp Mail is a deliverability-first temporary email platform designed to solve one of the biggest issues users face with disposable email services: missing emails. Many temporary inbox providers fail to deliver verification codes, OTPs, and account activation emails due to poor infrastructure and weak authentication settings. Best Temp Mail addresses this problem by using properly configured email infrastructure focused on reliability, security, and consistent inbox access.The platform implements industry-standard email authentication and security technologies, including SPF, DMARC with a reject policy, TLS encryption, and reverse DNS configuration. These systems help ensure that incoming emails are securely delivered and accepted by the platform without unnecessary rejection or filtering.Instant Disposable Inboxes with Flexible AccessBest-TempMail.com allows users to create instant temporary inboxes within seconds. The service is ideal for account verification, software testing, online registrations, development workflows, and protecting personal email addresses from spam.Users can choose between:Short-Term Temporary Inboxes10-minute disposable email addressesQuick OTP and verification code accessFast sign-ups and one-time registrationsExtended Temporary InboxesInbox access for multiple daysIdeal for ongoing testing or temporary projectsAbility to extend inbox lifespan when neededCross-Device Session AccessThe platform also supports seamless cross-device access through QR-based session sharing. Users can continue using the same inbox on mobile, desktop, or tablet devices without creating accounts or managing passwords.Privacy-First Tools for Developers and TeamsIn addition to temporary email services, Best Temp Mail offers a growing collection of productivity, security, and developer-focused tools. The platform currently includes more than 45 built-in utilities, with plans to expand to over 200 tools in the future.Included Tools and FeaturesEmail authentication testingDNS analysis toolsBlacklist monitoringEmail validation utilitiesJSON formatting and beautifyingHashing and encoding toolsData conversion utilitiesDeveloper workflow helpersA major advantage of the platform is its privacy-first architecture. Many tools run entirely client-side, meaning user data is processed locally in the browser instead of being stored on external servers. This approach improves privacy, security, and overall trust.Built for Modern WorkflowsBest Temp Mail is designed for:DevelopersQA testersStartupsCybersecurity professionalsBusinesses and remote teamsPrivacy-conscious usersWhether users need secure disposable inboxes for application testing, temporary account registrations, or spam protection, the platform combines reliable email delivery, advanced security standards, and workflow efficiency into one complete solution.Why Best Temp Mail Stands OutKey BenefitsDeliverability-focused infrastructureSecure email authentication setupInstant disposable inbox creationFlexible inbox expiration optionsCross-device QR session sharingPrivacy-first client-side toolsGrowing ecosystem of developer utilitiesNo unnecessary account creationBest Temp Mail is more than just a temporary email service. It is a complete platform built around reliable email access, privacy, security, and productivity for modern users and development teams.

APIs & IntegrationsDeveloper ToolsSaaS
0
112
Huebert logo

5. Huebert

Huebert is a professional color toolkit for web creatives. It helps you to create prettier designs with less effort using tools like the powerful color palette generator, the high contrast generator, the shadcn/ui theme generator and even more. Checkout the AI powered tools to make your life easier.

APIs & IntegrationsDesign ToolsDeveloper Tools
0
100
VirtualSMS logo

6. VirtualSMS

Real-SIM SMS verification for AI agents. Works on WhatsApp, Telegram, Google, and 2500+ other services where VoIP fails.Most SMS-verification APIs hand AI agents VoIP numbers — and WhatsApp, Telegram, Google, Binance, and Uber filter them out before the OTP is ever sent. VirtualSMS runs real physical SIM cards on owned hardware across 145+ countries for 2500+ services, so the code actually arrives.Built for AI agents from day one🤖 MCP server, 18 tools — hosted at mcp.virtualsms.io/mcp or local via npx virtualsms-mcp🔌 10 MCP clients tested: Claude Desktop, Claude Code, Cursor, Windsurf, OpenClaw, Codex, Hermes, Cline, Zed, Continue.dev💸 Account-less x402 USDC on Base, Solana, and BNB Chain — agent settles a deposit, gets an API key + balance back. No signup, no email.📡 REST + WebSocket API for the prepaid-key flow · from $0.05 per code · $2 minimum deposit✅ 95%+ success rate on real-SIM activations · auto-refund if no SMS arrives in 20 min🗺️ Machine-readable surfaces for LLM crawlers: /skill.md, /llms.txt, /.well-known/x402.jsonFor agent stacks that need real-SIM phone numbers to receive OTP codes — sign-up automations, two-factor auth, and account verification across WhatsApp / Telegram / Google / Uber / Binance and 2495 other services. Operating since 2022.→ agents.virtualsms.io · virtualsms.io · github.com/virtualsms-io/mcp-server

Artificial IntelligenceAPIs & IntegrationsDeveloper Tools
0
118
CreepyLink logo

7. CreepyLink

A simple URL masking and link cloaking tool to safely disguise and customize your links.

Developer ToolsMarketing ToolsSaaS
0
72
Mailfab logo

8. Mailfab

Fast, disposable temporary email with OpenAPI

APIs & IntegrationsDeveloper ToolsTesting & QA
0
89
List Bulb logo

9. List Bulb

ListBulb is a curated AI tools and startup discovery platform where founders can showcase products, improve SEO, gain visibility, and reach early adopters. Discover trending AI tools, SaaS products, developer utilities, and innovative startups in one place.

Artificial IntelligenceDeveloper ToolsDirectory
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98
NuxtBase logo

10. NuxtBase

NuxtBase is a production-ready Nuxt SaaS starter kit designed to help indie founders and small teams launch their SaaS products in days, not months. It provides a comprehensive foundation, eliminating the need to rebuild common infrastructure from scratch. The kit comes with authentication, billing, organizations, admin tools, AI-ready flows, documentation, and SEO capabilities already wired up.

Developer Tools
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82
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