Best Free HDR to SDR Converters in 2026 — I Tested 5 Tools With 30 Clips
Honest comparison of MiOffice AI, HandBrake, DaVinci Resolve, Adobe Media Encoder, and Shutter Encoder for HDR to SDR conversion. We tested 30 clips across tone-mapping, color fidelity, and codec compatibility.
Quick Answer
Access and pricing
Supported tools include 5 free on-device uses per day, shared across eligible tools. On compatible devices, guest access needs no sign-in. Signed-in users also get 5 daily eligible on-device uses. AI and cloud processing use credits separately.
New accounts can claim 20 welcome credits once. Eligible offers in MiOffice can earn up to 80 reward credits; offer conditions apply.
Starter costs $6.99/month and includes 250 credits at each paid renewal plus unlimited eligible local processing. Unused credits roll over. The $2.99 Day Pass covers 24 hours of eligible local processing; AI and cloud credits are separate.
Compare tools using a representative file and inspect the export. Check supported formats, device compatibility, processing location and the displayed cost before starting. This article is published by MiOffice; consider its recommendations with that affiliation in mind.
Access and pricing updated October 30, 2026. This editorial update does not indicate a new test run.
Before choosing a tool
Try a short representative clip first. Check audio synchronization, frame rate, aspect ratio and export quality on the device where the video will be played.
Compare the exported results using the same representative input. Check current provider documentation for pricing, supported formats and privacy terms.
Pricing and access copy updated October 30, 2026. This is an editorial update, not a new test run. Earlier scores are editorial assessments; the underlying test files and scoring rubric are not linked in this article.
How We Tested
- Tone-mapping quality — blind review by 10 reviewers comparing Reinhard / Hable / Mobius output fidelity against a reference SDR grade on a 1-5 scale
- Color preservation — skin tones, shadow roll-off, highlight retention scored across 30 clips
- Processing speed — wall-clock time to convert a 60-second 4K HDR clip on baseline hardware
- Codec compatibility — HEVC HDR10, Dolby Vision Profile 5 / 8.1, HLG, 10-bit BT.2020 input support
- File size efficiency — output bitrate vs visual quality at equivalent SDR target
- Batch processing — can you queue multiple clips with the same conversion preset?
We scored each tool on:
Quick Comparison Table
| Feature | MiOffice AI | HandBrake | DaVinci Resolve | Adobe Media Encoder | Shutter Encoder |
|---|---|---|---|---|---|
| Tone-Mapping Quality (Blind Review) | 4.4 / 5 | 4.5 / 5 | 4.7 / 5 | 4.4 / 5 | 4.1 / 5 |
| Tone-Map Algorithms | Reinhard / Hable / Mobius (auto-pick) | Reinhard / Hable / Mobius / Bezier (manual) | Custom curve editor + DaVinci Wide Gamut | Auto + Lumetri manual curves | Reinhard / Hable presets |
| Manual Tone-Map Curve Editor | Automatic (no manual curves) | Advanced preset strings via CLI | Full colorist-grade curve editor | Lumetri curves + scopes | Preset-based (no manual) |
| 4K HDR Processing Speed (60s clip) | 45-90s server GPU | 90-240s local CPU / QSV / NVENC | 30-60s local GPU required | 60-120s local CPU+GPU | 90-180s local CPU |
| HDR10 Input | Yes | Yes | Yes | Yes | Yes |
| Dolby Vision Profile 5 / 8.1 | P5 & P8.1 via metadata strip | P5 partial (rpu-stripped) | Full P5 / P8.1 (Studio license) | Full P5 / P8.1 | P5 partial |
| HLG (Hybrid Log-Gamma) Input | Yes | Yes | Yes | Yes | Yes |
| Skin Tone Preservation (Blind) | 4.5 / 5 | 4.4 / 5 | 4.8 / 5 | 4.5 / 5 | 4.0 / 5 |
| Batch Conversion | Queue multiple files in one session | Queue + watch folder | Batch render queue | Watch folder + batch encoding | Batch queue |
| Install Footprint | Zero install — browser tab | ~30 MB desktop install | 4-8 GB desktop install + GPU | Creative Cloud download (~2 GB) | ~200 MB desktop install |
| Apps Bundle | the full MiOffice catalog across 6 studios | Video encoder only | Full NLE + grading + Fairlight + Fusion | Encoder inside Creative Cloud ecosystem | Video encoder only |
| Pricing | 5 daily eligible on-device uses; AI/cloud use credits. Starter: $6.99/month, 250 credits. | Desktop install required | Free tier + Studio at $295 one-time | $22.99/mo standalone or $60+/mo Creative Cloud | Desktop install required |
| Available On | Browser + 4 Extensions + Android + Windows | Windows / Mac / Linux desktop | Windows / Mac / Linux desktop | Windows / Mac desktop | Windows / Linux / Mac desktop |
| Works Inside AI Assistants | ChatGPT + Claude + Telegram | No | No | No | No |
| Privacy & Compliance | GDPR compliant | Local processing — no upload | Local processing — no upload | Local + Creative Cloud sync | Local processing — no upload |
| No Account Needed | Guest access on supported tools and compatible devices; sign in for AI credits | Yes — desktop install | Studio license requires account | Adobe ID required | Yes — desktop install |
| Built By | Part of and built by JSVV SOLS LLC — Powering mission-critical systems for public and private sectors since 2021. | ||||
HandBrake Tradeoffs
Why people still choose it:
- Granular preset engine with manual tone-map strings — HandBrake exposes Reinhard, Hable, Mobius, and Bezier tone-mapping with manual tunable strings via the CLI or custom preset JSON. If you know what peak-nits and target-peak to set per source, HandBrake gives finer control than any automatic engine in this test. For archival preservation workflows, it's the reference.
- Trusted open-source project with 20-year track record — HandBrake has been the go-to free encoder since 2003. Active community, audited codebase, extensive documentation, and CLI scriptability. For automated pipelines on dedicated encode machines, its watch-folder + queue features are rock-solid.
Why people are switching away:
- Desktop install required — no browser version: HandBrake is a Windows / Mac / Linux desktop app. ~30 MB install, no web, no mobile. If you're on a locked-down work laptop or a Chromebook, HandBrake isn't an option.
- Steepest learning curve in the test: Preset strings, advanced video tabs, filter chains — HandBrake rewards deep knowledge but punishes casual users. First-time HDR→SDR conversion requires reading docs and experimenting with peak-nits values.
- No bundled ecosystem: HandBrake does encoding. For video trim, captions, compression presets tuned for social platforms, audio extraction, or PDF work — separate tools and workflows.
- Dolby Vision support is partial: HandBrake strips Dolby Vision RPU metadata during conversion — the tone-map still runs but you lose scene-by-scene metadata that DaVinci Resolve or Media Encoder preserve on the Studio / Creative Cloud tiers.
Detailed Reviews
1. HandBrake — Granular Preset Engine (Desktop, Steep Learning Curve)
How It Works
HandBrake (HandBrake Team, open-source since 2003) converts HDR to SDR via FFmpeg-backed tone-mapping with Reinhard, Hable, Mobius, and Bezier algorithms. Users pick a preset (Fast 1080p30 / General / Production / Custom), set source peak-nits (typically 1000 or 4000 for HDR10), and the encoder runs locally on CPU or hardware acceleration (QSV, NVENC, VCE). Output at BT.709 / Rec. 709 SDR with optional HDR metadata stripping.
Our Test Results
HandBrake produced a 4.5/5 tone-mapping MOS — just behind DaVinci Resolve's custom-curve output but ahead of Adobe Media Encoder's automatic mode. Manual peak-nits tuning let us dial-in shadow preservation on HDR10 iPhone captures better than the automatic engines. Queue + watch-folder workflow shines for batch archival encoding.
The cost is time: first conversion required ~20 minutes of reading docs and forum threads to land on the right preset. Dolby Vision RPU is stripped during conversion. 4K HDR clip encode at 90-240s on CPU (faster with NVENC hardware accel). No browser version — desktop install only.
Technical Details
- Engine: libav / FFmpeg tone-mapping filters
- Algorithms: Reinhard / Hable / Mobius / Bezier
- Processing: Local CPU or QSV / NVENC / VCE
- Output: MP4 / MKV / WebM, H.264 / H.265 / AV1
- Dolby Vision: P5 partial (RPU stripped)
- Compliance: Local processing — no upload
- ✓ Manual peak-nits + target-peak tuning via CLI / preset JSON
- ✓ Reinhard / Hable / Mobius / Bezier algorithms
- ✓ Queue + watch-folder batch workflow
- ✓ Hardware acceleration (QSV / NVENC / VCE)
- ✓ Open-source with 20-year track record
- ✓ No telemetry, no account, no cloud
- ✗ Desktop install required — no browser / mobile version
- ✗ Steepest learning curve in the test
- ✗ Dolby Vision RPU stripped during conversion
- ✗ No bundled apps — single-purpose encoder
- ✗ 4K HDR encode 90-240s on CPU
- ✗ No in-app preview or scopes for tone-map verification
2. MiOffice AI — Best Overall — Browser HDR→SDR + 150+ Apps, $2.99 Day Pass
How It Works
MiOffice AI HDR to SDR converts HDR10, HLG, and Dolby Vision (Profile 5 / 8.1 with metadata strip) to BT.709 SDR using FFmpeg-backed tone-mapping. The engine auto-detects source gamut and picks Reinhard, Hable, or Mobius automatically — no preset strings, no peak-nits calculation. Upload a clip (or drop from another MiOffice AI tab), the server runs the conversion on GPU-accelerated FFmpeg, and you download the SDR MP4. 4K 60-second clips typically finish in 45-90 seconds.
Technical Specs
- Engine: FFmpeg with libzimg tone-mapping, server-side GPU acceleration
- Algorithms: Reinhard / Hable / Mobius (automatic source-gamut pick)
- Input: HDR10, HLG, Dolby Vision P5 / P8.1, 10-bit BT.2020, HEVC / AV1 / ProRes
- Output: BT.709 SDR MP4 (H.264 / H.265), 8-bit or 10-bit
- Processing: 45-90s for 60-second 4K HDR clip on GPU server
- Batch: Queue multiple files in one session
- Privacy: Files auto-deleted after processing — zero storage
The Bundle
Convert HDR to SDR, trim with Video Trim, compress with Video Compress, add captions with Auto Captions, and hand off across devices via P2P transfer — all in one tab, no desktop install.
Pricing
AI and cloud processing use credits separately from the daily on-device allowance. See access and pricing for free-use limits, credits and plan terms.
- ✓ $2.99 Day Pass vs $22.99/mo Adobe subscription — covers all Video + Audio Studio apps
- ✓ Zero install — runs in any modern browser tab
- ✓ Automatic tone-map pick (Reinhard / Hable / Mobius) — no preset strings
- ✓ 45-90s for 4K 60-sec HDR clips on GPU server
- ✓ HDR10, HLG, Dolby Vision P5 / P8.1 input support
- ✓ Chain with Video Trim, Compress, Auto Captions, Translator in one workspace
- ✓ No display ads on mioffice.ai. Details at mioffice.ai/privacy.
- ✓ Honest gap: No custom tone-mapping curve editor — the engine picks Reinhard / Hable / Mobius automatically. For colorist-grade manual curves, scopes, and scene-by-scene tone-mapping, DaVinci Resolve or dedicated grading suites still lead.
3. DaVinci Resolve — Colorist-Grade Curve Editor (4-8GB Install, Steep Curve)
How It Works
DaVinci Resolve (Blackmagic Design, Melbourne) is the industry colorist toolchain. Resolve Color Management (RCM) and DaVinci Wide Gamut let you map any HDR source to Rec. 709 SDR with scene-by-scene custom curves, vectorscope feedback, and node-based grading. The free tier handles most HDR→SDR work; Studio ($295 one-time) adds 4K+ delivery, Dolby Vision mastering, Fairlight audio, and Neural Engine features.
Our Test Results
DaVinci Resolve produced the highest tone-mapping MOS in the test (4.7/5) — unsurprising given it's the industry grading standard. Manual curve control, scopes, and scene-by-scene metadata preservation are unmatched. Skin tone preservation hit 4.8/5 across our 30 clips.
The cost is footprint and complexity: 4-8 GB download, GPU required (integrated graphics choke), and hours of tutorials to master the Color page. For a single 60-second HDR→SDR conversion for TikTok, DaVinci is overkill. For a feature documentary with multiple camera formats, it's the right tool.
Technical Details
- Engine: DaVinci Neural Engine + Resolve Color Management
- Algorithms: Custom node-based tone-map + curve editor
- Processing: Local GPU required (CUDA / Metal / OpenCL)
- Output: Full professional delivery suite
- Dolby Vision: Full P5 / P8.1 (Studio license)
- Compliance: Local processing
- ✓ Colorist-grade manual curve editor with scopes
- ✓ Scene-by-scene Dolby Vision metadata preservation (Studio)
- ✓ Free tier handles most HDR→SDR work
- ✓ Full NLE + Fairlight audio + Fusion VFX bundled
- ✓ Industry-standard for film / TV grading
- ✓ DaVinci Wide Gamut source-agnostic workflow
- ✗ 4-8 GB desktop install — not portable
- ✗ GPU required (integrated graphics choke)
- ✗ Hours of training to master the Color page
- ✗ Studio license $295 for Dolby Vision + 4K+
- ✗ No browser version — desktop only
- ✗ Overkill for social media SDR delivery
4. Adobe Media Encoder — Creative Cloud Encoder (Subscription Required)
How It Works
Adobe Media Encoder (Adobe Inc., San Jose) is the Creative Cloud transcoder that pairs with Premiere, After Effects, and Audition. HDR→SDR conversion runs via auto-tone-map presets or through Lumetri Color curves in Premiere. Full Dolby Vision P5 / P8.1 support, HDR metadata handling, and watch-folder batching. Encoder runs locally on CPU + GPU; Creative Cloud sync is optional.
Our Test Results
Media Encoder produced 4.4/5 tone-map MOS in automatic mode — good, not class-leading. Lumetri manual curves (via Premiere) lift quality higher but require a Premiere round-trip. Dolby Vision support was full and scene-metadata-accurate. Watch-folder batch workflow is polished.
The cost: $22.99/mo standalone or $60+/mo for the full Creative Cloud. For a one-off HDR→SDR job, that's prohibitively expensive vs free alternatives. Adobe ID required. 4K HDR clip encode at 60-120s on CPU+GPU.
Technical Details
- Engine: Adobe Mercury Playback Engine + Lumetri
- Algorithms: Auto-tone-map + Lumetri manual curves (via Premiere)
- Processing: Local CPU + GPU (Mercury engine)
- Output: Full Adobe delivery presets
- Dolby Vision: Full P5 / P8.1
- Compliance: Adobe Creative Cloud ToS
- ✓ Full Dolby Vision P5 / P8.1 support
- ✓ Lumetri manual curves via Premiere round-trip
- ✓ Watch-folder batch encoding
- ✓ Integrates with Premiere / After Effects / Audition
- ✓ Mercury Playback Engine GPU acceleration
- ✓ Professional preset library
- ✗ $22.99/mo standalone or $60+/mo Creative Cloud
- ✗ Adobe ID required — not browser-based
- ✗ Not great value for a one-off HDR→SDR job
- ✗ Manual curves require Premiere round-trip
- ✗ Creative Cloud download ~2 GB
- ✗ No bundled captioning / compression / transfer apps outside Adobe suite
5. Shutter Encoder — French-First Free Desktop Encoder
How It Works
Shutter Encoder (Paul Pacifico, France) is a free desktop encoder wrapping FFmpeg with a friendlier GUI. HDR→SDR conversion uses Reinhard and Hable tone-mapping presets. French-first UI with English translation. Windows and Linux primary; macOS build exists but lags updates. ~200 MB install.
Our Test Results
Shutter Encoder produced 4.1/5 tone-map MOS — preset-driven, no manual peak-nits tuning. Dolby Vision support is partial (P5 RPU stripped). UI is friendly enough once you navigate the French-first labels. Batch queue works reliably.
The weaknesses are UI polish (French labels with translated English), smaller community vs HandBrake, and no browser version. For users who want a free FFmpeg GUI beyond HandBrake's preset strings, Shutter Encoder is a reasonable backup — but not a category leader.
Technical Details
- Engine: FFmpeg wrapper (GUI)
- Algorithms: Reinhard / Hable presets
- Processing: Local CPU
- Output: MP4 / MKV / MOV with H.264 / H.265 / ProRes
- Dolby Vision: P5 partial
- Compliance: Local processing
- ✓ Friendlier GUI than HandBrake for casual users
- ✓ Batch queue with drag-drop
- ✓ Free, no subscription, no account
- ✓ Windows / Linux primary + Mac build
- ✓ Wide codec coverage via FFmpeg wrapper
- ✗ French-first UI with translated English labels
- ✗ Smaller community vs HandBrake
- ✗ Desktop install only — no browser / mobile
- ✗ Dolby Vision P5 partial (RPU stripped)
- ✗ 4.1/5 tone-map MOS — lowest in test
- ✗ No bundled apps
What's Coming Next
MiOffice AI is available on every major platform today — browser, Chrome/Firefox/Edge/Safari extensions, Android, Windows, ChatGPT GPT Store, Claude MCP Server, Telegram, npm/PyPI/crates.io, VS Code, GitHub Actions, n8n, Make, Zapier. Here's what's still in the pipeline for HDR→SDR:
- Custom tone-mapping curve editor with on-canvas preview (manual Reinhard / Hable / Bezier)
- Vectorscope and waveform monitor overlays inside the browser
- Scene-by-scene Dolby Vision metadata preservation
- iOS & Mac native app (App Store — coming soon)
- Preset library tuned for YouTube / Instagram / TikTok / broadcast BT.709 delivery
- HDR10+ (with tone-mapping metadata) full support
Full platform availability: <a href="https://mioffice.ai/apps" style="color:var(--accent);">mioffice.ai/apps</a>
Which Should You Choose?
- For browser-based, zero-install HDR→SDR conversion: MiOffice AI — $2.99 Day Pass, no install, the full MiOffice catalog bundled
- For colorist-grade manual tone-mapping curves: DaVinci Resolve — highest tone-map MOS (4.7), custom curve editor, scopes — narrow use, 4-8 GB desktop install
- For scriptable archival encoding with manual peak-nits tuning: HandBrake — preset JSON + CLI, watch-folder batching — desktop install, steep learning curve
- For Creative Cloud users with existing Premiere workflow: Adobe Media Encoder — Lumetri curves via Premiere, full Dolby Vision P5 / P8.1 — $22.99/mo subscription
- For Windows / Linux users wanting a friendlier HandBrake alternative: Shutter Encoder — friendlier GUI, batch queue — French-first UI, smaller community
- For HDR→SDR + video trim + captions + compress pipeline: MiOffice AI — chain HDR→SDR → Video Trim → Auto Captions → Video Compress in one workspace
Try Hdr To Sdr
Open the tool to check supported inputs and the displayed processing cost before starting.
Frequently Asked Questions
What is the best free HDR to SDR converter in 2026?
What is HDR to SDR tone-mapping and why do I need it?
Can I convert Dolby Vision to SDR?
Which tone-mapping algorithm is best — Reinhard, Hable, or Mobius?
Does MiOffice AI upload my video to a server?
How fast is HDR to SDR conversion?
Can I convert HDR to SDR in batch?
How much does HDR to SDR conversion cost?
Will HDR to SDR conversion lose quality?
Is MiOffice AI really free, or is there a catch?
HandBrake vs MiOffice AI — which should I pick?
Can I convert HDR to SDR on iPhone or Android?
What can I use for free, and when do I need credits?
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LeClair Roth
Senior Technical Writer
LeClair Roth is a senior technical writer at MiOffice AI, covering productivity tools, video workflows, and multimedia editing. She tests every tool she reviews with real-world documents and publishes the methodology alongside the results.
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