# AI tools for “Audio Annotation” 89 matching tools; showing 24, ranked by relevance. Filters: `group=coding-development` | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [SuperAnnotate](https://openaitools.app/tool/super-annotate) | 386,034 | +37.4% | Free Trial, Contact for Pricing | AI data infrastructure for building production-grade models | keywords 100%; semantic match | [.md](https://openaitools.app/tool/super-annotate.md) | | 2 | [Label Studio](https://openaitools.app/tool/label-studio) | 137,199 | -16.1% | Contact for Pricing, Free | Label any data. Evaluate any AI. | keywords 100%; semantic match | [.md](https://openaitools.app/tool/label-studio.md) | | 3 | [Appen](https://openaitools.app/tool/appen-com) | 665,840 | +0.2% | Contact for Pricing | Human-validated training data and evaluation services for frontier AI models | keywords 68%; semantic match | [.md](https://openaitools.app/tool/appen-com.md) | | 4 | [ElevenLabs](https://openaitools.app/tool/elevenlabs-io) | 42,396,771 | +26.1% | Freemium, Paid, Contact for Pricing | AI audio platform for speech, agents, music and dubbing | semantic match | [.md](https://openaitools.app/tool/elevenlabs-io.md) | | 5 | [clickworker](https://openaitools.app/tool/clickworker-com) | 1,861,149 | +0.5% | Contact for Pricing | Crowdsourcing data services for AI training and market data | keywords 68%; semantic match | [.md](https://openaitools.app/tool/clickworker-com.md) | | 6 | [Happy Scribe](https://openaitools.app/tool/happyscribe-com) | 4,088,330 | +8% | Freemium, Free Trial, Paid | AI transcription and meeting notes in 150+ languages | semantic match | [.md](https://openaitools.app/tool/happyscribe-com.md) | | 7 | [BasicAI Cloud](https://openaitools.app/tool/basicai-cloud) | 21,670 | -13.1% | Freemium, Enterprise Quote | AI data annotation platform and managed labeling services for AI training data | keywords 100%; semantic match | [.md](https://openaitools.app/tool/basicai-cloud.md) | | 8 | [Encord](https://openaitools.app/tool/encord-com) | 244,204 | +9.4% | Contact for Pricing | The multimodal data layer for computer vision and physical AI teams | keywords 68%; semantic match | [.md](https://openaitools.app/tool/encord-com.md) | | 9 | [Isahit](https://openaitools.app/tool/isahit) | 13,136 | +80.2% | Contact for Pricing | Ethical human-in-the-loop data labeling and AI validation | keywords 100%; semantic match | [.md](https://openaitools.app/tool/isahit.md) | | 10 | [Unitlab](https://openaitools.app/tool/unitlab-ai) | 3,903 | -36.4% | Freemium, Contact for Pricing | Curate, annotate and QA multimodal training data in one governed workspace | keywords 100%; semantic match | [.md](https://openaitools.app/tool/unitlab-ai.md) | | 11 | [Cleanvoice AI](https://openaitools.app/tool/cleanvoice-ai) | 913,998 | +8.2% | Freemium | AI audio and video podcast editor that cleans up recordings in minutes | semantic match | [.md](https://openaitools.app/tool/cleanvoice-ai.md) | | 12 | [AssemblyAI](https://openaitools.app/tool/assemblyai) | 453,591 | -6.9% | Freemium, Contact for Pricing | Speech-to-text and voice intelligence APIs for developers | semantic match | [.md](https://openaitools.app/tool/assemblyai.md) | | 13 | [Klangio](https://openaitools.app/tool/klangio) | 658,426 | -11.8% | Freemium, Free Trial | Turn audio, recordings, and YouTube into sheet music, MIDI, and tabs | semantic match | [.md](https://openaitools.app/tool/klangio.md) | | 14 | [Gladia](https://openaitools.app/tool/gladia) | 232,451 | +6.4% | Freemium, Contact for Pricing | Speech-to-text and audio intelligence API for production voice products | semantic match | [.md](https://openaitools.app/tool/gladia.md) | | 15 | [Speak AI](https://openaitools.app/tool/speakai-co) | 173,614 | +10.6% | Freemium, Free Trial, Paid | Transcribe, analyze, and score every conversation against your own methodology | semantic match | [.md](https://openaitools.app/tool/speakai-co.md) | | 16 | [Roboflow](https://openaitools.app/tool/roboflow) | 1,431,204 | +6.6% | Freemium, Contact for Pricing | Build, train, and deploy computer vision for the physical world | keywords 68% | [.md](https://openaitools.app/tool/roboflow.md) | | 17 | [Transcri](https://openaitools.app/tool/transcri) | 269,989 | -6.3% | Freemium | AI transcription and subtitle generation in over 100 languages | semantic match | [.md](https://openaitools.app/tool/transcri.md) | | 18 | [AudioPod AI](https://openaitools.app/tool/audiopod-ai) | 146,540 | -16.1% | Freemium, Paid, Contact for Pricing | Browser audio workstation for voice, podcasts and audiobooks | semantic match | [.md](https://openaitools.app/tool/audiopod-ai.md) | | 19 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | keywords 68% | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 20 | [RecCloud](https://openaitools.app/tool/reccloud) | 441,044 | +12.9% | Freemium, Free Trial | AI video, subtitles, transcription, and screen recording in one online toolkit. | semantic match | [.md](https://openaitools.app/tool/reccloud.md) | | 21 | [Hello Audio](https://openaitools.app/tool/hello-audio) | 90,994 | -40.6% | Freemium, Free Trial | Turn courses, calls and content into private podcasts your audience actually finishes | semantic match | [.md](https://openaitools.app/tool/hello-audio.md) | | 22 | [Cyanite](https://openaitools.app/tool/cyanite-s-free-text-search) | 115,980 | -26.2% | Free Trial | AI music tagging and free-text search for large catalogs | semantic match | [.md](https://openaitools.app/tool/cyanite-s-free-text-search.md) | | 23 | [Rev AI](https://openaitools.app/tool/rev-ai) | 50,708 | -18.4% | Free Trial, Paid | Developer-first speech-to-text API with industry-leading accuracy | semantic match | [.md](https://openaitools.app/tool/rev-ai.md) | | 24 | [Ultralytics](https://openaitools.app/tool/ultralytics) | 793,423 | +8.7% | Freemium | Real-time vision AI models and a full platform to train, annotate, and deploy them | keywords 68% | [.md](https://openaitools.app/tool/ultralytics.md) | Page 1 of 4 · [Next page →](https://openaitools.app/index.md?q=Audio+Annotation&group=coding-development&page=2) For programmatic access use `https://openaitools.app/api/tools?q=…` or MCP `https://openaitools.app/api/mcp`. --- Source: https://openaitools.app/?q=Audio%20Annotation More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)