Mac app for voice-annotated screenshots, screen capture with editing, and local clipboard history, all processed on-device.
assistapp.dev
Alternatives to
Sonar
Best alternatives to Sonar in 2026
Every developer has been there: you try to start your dev server and get "port 3000 already in use," so you go hunting with lsof or ss to figure out what's squatting on that port, then kill it by PID. Sonar turns that whole ritual into a single readable command — it shows you every service listening on localhost, what process owns it, and lets you kill it directly, with extras like Docker container names and resource usage baked in. Sonar is a free, MIT-licensed, Go-based CLI (worth noting: it has no relation to SonarQube, the code-quality/security-scanning product from SonarSource — same-ish name, completely different tool). It works cross-platform using each OS's native tools under the hood (lsof on macOS, ss on Linux, netstat on Windows), and beyond basic port listing it shows CPU, memory, thread count, uptime, and health-check status for each service, can kill single processes or filtered groups (by Docker project, by user, with confirmation skipping), tails logs, and even opens a shell into a running container. There's an optional native Swift menu bar app for macOS if you want the same information without opening a terminal.
Quick comparison of Sonar alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Mac users needing quick visual explanations: bug reports, design feedback, async team communication | — | |
| 2 | Developers, freelancers, and agencies monitoring uptime and security posture for client sites | — | |
| 3 | Développeurs et analystes de données qui manipulent de gros fichiers CSV | — | |
| 4 | Équipes QA, développeurs et support technique qui reçoivent des rapports de bugs imprécis de la part de non-techniciens | — | |
| 5 | Développeurs web et créateurs de Progressive Web Apps voulant générer rapidement l'ensemble des assets PWA à partir d'une seule image source. | — | |
| 6 | Équipes data et analytics implémentant des agents IA pour l'analyse de données | — | |
| 7 | Développeurs et administrateurs système gérant des connexions SSH distantes et des transferts de fichiers | — | |
| 8 | Développeurs faisant tourner plusieurs agents de code IA en parallèle (Claude Code, Codex, OpenCode) | — | |
| 9 | Individuals wanting private, free voice dictation; teams/enterprises wanting secure local dictation. | — | |
| 10 | Java developers and software architects debugging startup performance and class-loading/dependency structure | — | |
| 11 | Professional services firms including accounting firms, consulting agencies, law firms, and service companies seeking to automate client onboarding and internal workflows. | — | |
| 12 | Équipes de développement et administrateurs système cherchant une détection précoce de pannes | — | |
| 13 | Administrateurs systèmes Windows gérant l'accès SSH et souhaitant un audit des sessions | — | |
| 14 | Utilisateurs Windows qui veulent un gestionnaire de mots de passe entièrement hors-ligne, sans dépendance cloud | — | |
| 15 | Équipes IT, DevOps, sécurité, administrations, universités, entreprises de toute taille | — | |
| 16 | Lecteurs de flux RSS voulant garder le contrôle de leurs données, développeurs, sysadmins, self-hosters | — | |
| 17 | Développeurs Go étudiant les internals de bases de données, projets pédagogiques, hobbyistes systèmes | — | |
| 18 | Équipes IT voulant partager des mots de passe avec permissions fines et LDAP | — | |
| 19 | Développeurs souhaitant auto-héberger un gestionnaire de mots de passe minimal | — | |
| 20 | Passionnés de self-hosting et lecteurs de flux à fort volume | — |
#1
- ✓ 100% local processing, nothing uploaded to the cloud
- ✓ One-time $20 purchase, no subscription
#2
Open-source security and uptime monitoring that scans for missing security headers, expiring SSL certs, exposed secrets, and downtime.
statusscout.dev
- ✓ Combines uptime, SSL expiration, security header, and exposed-secret scanning in one tool
- ✓ Open-source and free forever when self-hosted
#3
Minimal, fast CSV viewer that streams large files without loading them into memory, opening multi-gigabyte files in under 200ms
te-x.github.io
- ✓ Ouvre des fichiers CSV de plusieurs gigaoctets en 75 à 182 millisecondes
- ✓ Consommation mémoire quasi constante quelle que soit la taille du fichier
#4
Chrome extension that captures a screenshot, video, console logs, and network details of a bug in one click, no manual writeup needed
session-replay.com
- ✓ Capture automatique complète en un clic : screenshot, vidéo, logs console, infos réseau
- ✓ Lien partageable sans inscription requise pour la personne qui rapporte le bug
#5
Generate 50+ PWA assets from a single source file, streamlining Progressive Web App asset creation.
assets.swoff.space
- ✓ Génère plus de 50 assets PWA en une passe
- ✓ Génère aussi manifest et balises HTML prêtes à coller
#6
Open-source tool that reads your existing dbt project, database schema, dashboards, and query logs, and automatically builds a structured map of your data's meaning — so an AI analytics agent has real context instead of guessing what a column means.
github.com
- ✓ Gratuit et open source (MIT)
- ✓ Exécution 100% locale, aucun appel API externe ni télémétrie
#7
Free, open-source desktop SSH client with SFTP, tunnels, and an MCP bridge for AI agents.
github.com
- ✓ Terminal à onglets avec division de panneaux
- ✓ Navigateur SFTP à deux panneaux avec glisser-déposer
#8
A free control room for running several AI coding assistants at once, side by side, without losing track of which one is doing what.
github.com
- ✓ Coordonne plusieurs agents de code en parallèle
- ✓ Isolation Git worktree par session
#9
A free, on-device voice dictation app for Mac, Windows, and iOS that turns speech into cleaned-up text without sending your audio to the cloud.
cloudless.so
- ✓ Fully local speech-to-text — no audio ever sent to a server
- ✓ Free for individuals, versus $12/month for the named competitor Wispr Flow
#10
An open-source command-line tool that captures what happens when a Java program loads its classes at startup, and turns that into an interactive graph you can explore in a browser.
github.com
- ✓ Free, open source, permissive BSD license
- ✓ Makes invisible JVM class-loading behavior visually explorable
#11
No-code app builder aimed at accounting firms, agencies, and consultancies — describe the app you need in plain English and get a working, hosted client portal or internal tool without hiring a developer.
studio.assembly.com
- ✓ Purpose-built for professional-service firm apps
- ✓ Auth, branding, hosting handled automatically
#12
An early-warning tool positioned to surface system failure points before they hit users — homepage details are minimal.
backpressure.systems
- ✓ Interesting proactive-failure-detection positioning, distinct from reactive alerting
- ✓ Simple, clear tagline communicates intent
#13
A free, passive tool that reconstructs SSH session activity — including commands — from Windows OpenSSH event logs.
github.com
- ✓ Reconstructs full session activity from Windows event logs, including commands
- ✓ Passive and read-only — never intercepts credentials
#14
A password manager that never talks to the internet at all — your vault, encrypted with AES-256, lives only on your Windows PC, so there's no cloud account to breach and no subscription to pay, at the cost of syncing to your phone.
github.com
- ✓ Free, open source, fully offline — no cloud account or subscription
- ✓ Modern encryption (AES-256-GCM + Argon2id key derivation)
#15
An open-source password manager built for teams, letting IT staff securely share logins and secrets without ever exposing the plain-text password.
passbolt.com
- ✓ Community Edition free and unlimited in users
- ✓ End-to-end encryption with full audit trails
#16
A self-hosted RSS reader that lets you follow news sites and blogs from your own server, with no ads, no algorithm, and no third party reading your feed list.
github.com
- ✓ Mature, very active project with 15.8k GitHub stars
- ✓ Multi-user support on a single install
#17
A small, from-scratch SQL database written in Go, built around write-ahead logging for crash recovery — an educational project, not a production database.
github.com
- ✓ Clear, readable write-ahead logging implementation
- ✓ Crash recovery via index reconstruction from logs
#18
Self-hosted team password vault with granular permissions, LDAP login, and three-layer encryption.
github.com
- ✓ Granular folder- and global-level permissions for teams
- ✓ LDAP authentication for existing corporate directories
#19
Self-hosted password manager built with Django, AES-256 GCM encryption, MFA, and brute-force protection.
github.com
- ✓ AES-256 GCM encryption with user-derived keys
- ✓ MFA support and rate-limited brute-force protection
#20
Self-hosted RSS reader with smart folders, semantic clustering, and legacy Fever/Google Reader API support.
github.com
- ✓ Smart Folders with powerful search-syntax queries
- ✓ Semantic event clustering, optional AI scoring (Qwen3, ModernBERT)
FAQ about Sonar alternatives
- What is the best alternative to Sonar in 2026?
- Based on our selection, Assist is the best alternative to Sonar in 2026. Mac app for voice-annotated screenshots, screen capture with editing, and local clipboard history, all processed on-device.. See our full ranking above to compare all options.
- Is Sonar free?
- Sonar is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Sonar are there?
- mySelectas has listed 20 alternatives to Sonar in the Editors, IDEs & Dev Tools category. Our selection is updated regularly to include the best options available.