Sonix

Subly

Subly is an accessibility platform focused on catching and fixing accessibility problems in pre-recorded video and audio before it goes live. An AI-powered checker scans content frame-by-frame against standards including WCAG, ADA, and EAA, flagging not just missing captions but also colour-contrast problems and flashing content that could trigger seizures, and produces compliance reports mapped to frameworks like WCAG 2.1, EN 301 549, and the ADA/ACA. On the content side, Subly generates closed captions and subtitles in over 100 languages with an online editor for corrections, can produce audio descriptions for visually impaired audiences, and supports uploads from Zoom, YouTube, Vimeo, and Adobe as well as OneDrive/SharePoint integration. A Subly API allows organizations to embed accessibility checking and captioning into their own publishing pipelines, making it aimed more at enterprises, agencies, and educational institutions with compliance obligations than individual creators wanting quick captions.

Happy Scribe

Happy Scribe is a transcription and subtitling platform used by more than 41,000 teams and 6 million users. It transcribes, subtitles, and translates audio and video in 150+ languages, offering up to 99 percent accuracy on clear audio and 85-95 percent accuracy with multiple speakers, along with 94 percent accurate speaker diarization. Beyond transcripts and subtitles, Happy Scribe includes an AI Notetaker that automatically joins calendar meetings on Zoom, Microsoft Teams, and Google Meet, plus an AI Chat feature for querying transcripts. The platform is SOC 2 Type II certified and GDPR compliant with EU data residency, and offers a web-based editor, mobile apps, and an API for developers, alongside optional human-verified transcription for guaranteed 99%+ accuracy.

Sononym

Sononym is a sample browser built for sound designers and music producers drowning in oversized sample libraries. Its machine-learning analysis extracts pitch, tempo, brightness, and timbre from every file, then powers a Similarity Search mode that finds comparable sounds using any reference audio, even a sound recorded live through a microphone. Beyond search, Sononym automatically categorizes samples into relevant groups like kicks, snares, and pads, detects duplicate files across libraries, and lets users bookmark and export curated collections for a DAW. It runs entirely offline on Windows, macOS, and Linux with no cloud dependency or activation server.

TurboTranscript

TurboTranscript is a web-based transcription platform that converts audio and video files into accurate, speaker-separated transcripts in over 130 languages. Beyond basic speech-to-text, it offers automatic translation, AI-powered summarization, subtitle generation (SRT/VTT), and PDF export—all within a clean, drag-and-drop interface. The service is designed for professionals who need fast, reliable transcription for podcasts, interviews, webinars, and global content, with features like automatic language detection and real-time toxicity flagging to ensure clean, safe transcripts. Whether you're a content creator, media producer, or business team, TurboTranscript streamlines the entire workflow from media upload to polished, exportable output in minutes.

Maestra

Maestra is an AI media localization platform that converts audio and video into transcripts, subtitles, translations, and dubbed voiceovers in more than 125 languages. It generates SRT and VTT subtitle files automatically, translates content with synchronized lip-sync, and produces AI dubbed voiceovers with voice cloning as an alternative to hiring voice talent. The platform also supports real-time live transcription and translation for meetings and broadcasts, and integrates with tools like YouTube, TikTok, Zoom, Microsoft Teams, Slack, and Zapier. Free standalone tools, including a subtitle editor and SRT editor, are available alongside its paid platform.